diff --git a/README.md b/README.md
index a047f07..9fc86e5 100644
--- a/README.md
+++ b/README.md
@@ -32,10 +32,10 @@ Create Pull Request action will:
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 ```
 
-You can also pin to a [specific release](https://github.com/peter-evans/create-pull-request/releases) version in the format `@v7.x.x`
+You can also pin to a [specific release](https://github.com/peter-evans/create-pull-request/releases) version in the format `@v6.x.x`
 
 ### Workflow permissions
 
@@ -131,7 +131,7 @@ If you want branches to be deleted immediately on merge then you should use GitH
 For self-hosted runners behind a corporate proxy set the `https_proxy` environment variable.
 ```yml
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         env:
           https_proxy: http://<proxy_address>:<port>
 ```
@@ -153,7 +153,7 @@ Note that in order to read the step outputs the action step must have an id.
 ```yml
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
       - name: Check outputs
         if: ${{ steps.cpr.outputs.pull-request-number }}
         run: |
@@ -216,7 +216,7 @@ File changes that do not match one of the paths will be stashed and restored aft
 
 ```yml
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           add-paths: |
             *.java
@@ -243,7 +243,7 @@ Note that the repository must be checked out on a branch with a remote, it won't
       - name: Uncommitted change
         run: date +%s > report.txt
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 ```
 
 ### Create a project card
@@ -253,7 +253,7 @@ To create a project card for the pull request, pass the `pull-request-number` st
 ```yml
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 
       - name: Create or Update Project Card
         if: ${{ steps.cpr.outputs.pull-request-number }}
@@ -288,7 +288,7 @@ jobs:
 
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.PAT }}
           commit-message: Update report
diff --git a/__test__/create-or-update-branch.int.test.ts b/__test__/create-or-update-branch.int.test.ts
index 9303e54..63d4c84 100644
--- a/__test__/create-or-update-branch.int.test.ts
+++ b/__test__/create-or-update-branch.int.test.ts
@@ -657,76 +657,6 @@ describe('create-or-update-branch tests', () => {
     ).toBeTruthy()
   })
 
-  it('tests create, commit with partial changes on the base, and update', async () => {
-    // This is an edge case where the changes for a single commit are partially merged to the base
-
-    // Create tracked and untracked file changes
-    const changes = await createChanges()
-    const commitMessage = uuidv4()
-    const result = await createOrUpdateBranch(
-      git,
-      commitMessage,
-      '',
-      BRANCH,
-      REMOTE_NAME,
-      false,
-      ADD_PATHS_DEFAULT
-    )
-    await git.checkout(BRANCH)
-    expect(result.action).toEqual('created')
-    expect(await getFileContent(TRACKED_FILE)).toEqual(changes.tracked)
-    expect(await getFileContent(UNTRACKED_FILE)).toEqual(changes.untracked)
-    expect(
-      await gitLogMatches([commitMessage, INIT_COMMIT_MESSAGE])
-    ).toBeTruthy()
-
-    // Push pull request branch to remote
-    await git.push([
-      '--force-with-lease',
-      REMOTE_NAME,
-      `HEAD:refs/heads/${BRANCH}`
-    ])
-
-    await afterTest(false)
-    await beforeTest()
-
-    // Create a commit on the base with a partial merge of the changes
-    await createFile(TRACKED_FILE, changes.tracked)
-    const baseCommitMessage = uuidv4()
-    await git.exec(['add', '-A'])
-    await git.commit(['-m', baseCommitMessage])
-    await git.push([
-      '--force',
-      REMOTE_NAME,
-      `HEAD:refs/heads/${DEFAULT_BRANCH}`
-    ])
-
-    // Create the same tracked and untracked file changes
-    const _changes = await createChanges(changes.tracked, changes.untracked)
-    const _commitMessage = uuidv4()
-    const _result = await createOrUpdateBranch(
-      git,
-      _commitMessage,
-      '',
-      BRANCH,
-      REMOTE_NAME,
-      false,
-      ADD_PATHS_DEFAULT
-    )
-    await git.checkout(BRANCH)
-    expect(_result.action).toEqual('updated')
-    expect(_result.hasDiffWithBase).toBeTruthy()
-    expect(await getFileContent(TRACKED_FILE)).toEqual(_changes.tracked)
-    expect(await getFileContent(UNTRACKED_FILE)).toEqual(_changes.untracked)
-    expect(
-      await gitLogMatches([
-        _commitMessage,
-        baseCommitMessage,
-        INIT_COMMIT_MESSAGE
-      ])
-    ).toBeTruthy()
-  })
-
   it('tests create, squash merge, and update with identical changes', async () => {
     // Branches that have been squash merged appear to have a diff with the base due to
     // different commits for the same changes. To prevent creating pull requests
@@ -1749,81 +1679,6 @@ describe('create-or-update-branch tests', () => {
     ).toBeTruthy()
   })
 
-  it('tests create, commit with partial changes on the base, and update (WBNB)', async () => {
-    // This is an edge case where the changes for a single commit are partially merged to the base
-
-    // Set the working base to a branch that is not the pull request base
-    await git.checkout(NOT_BASE_BRANCH)
-
-    // Create tracked and untracked file changes
-    const changes = await createChanges()
-    const commitMessage = uuidv4()
-    const result = await createOrUpdateBranch(
-      git,
-      commitMessage,
-      BASE,
-      BRANCH,
-      REMOTE_NAME,
-      false,
-      ADD_PATHS_DEFAULT
-    )
-    await git.checkout(BRANCH)
-    expect(result.action).toEqual('created')
-    expect(await getFileContent(TRACKED_FILE)).toEqual(changes.tracked)
-    expect(await getFileContent(UNTRACKED_FILE)).toEqual(changes.untracked)
-    expect(
-      await gitLogMatches([commitMessage, INIT_COMMIT_MESSAGE])
-    ).toBeTruthy()
-
-    // Push pull request branch to remote
-    await git.push([
-      '--force-with-lease',
-      REMOTE_NAME,
-      `HEAD:refs/heads/${BRANCH}`
-    ])
-
-    await afterTest(false)
-    await beforeTest()
-
-    // Create a commit on the base with a partial merge of the changes
-    await createFile(TRACKED_FILE, changes.tracked)
-    const baseCommitMessage = uuidv4()
-    await git.exec(['add', '-A'])
-    await git.commit(['-m', baseCommitMessage])
-    await git.push([
-      '--force',
-      REMOTE_NAME,
-      `HEAD:refs/heads/${DEFAULT_BRANCH}`
-    ])
-
-    // Set the working base to a branch that is not the pull request base
-    await git.checkout(NOT_BASE_BRANCH)
-
-    // Create the same tracked and untracked file changes
-    const _changes = await createChanges(changes.tracked, changes.untracked)
-    const _commitMessage = uuidv4()
-    const _result = await createOrUpdateBranch(
-      git,
-      _commitMessage,
-      BASE,
-      BRANCH,
-      REMOTE_NAME,
-      false,
-      ADD_PATHS_DEFAULT
-    )
-    await git.checkout(BRANCH)
-    expect(_result.action).toEqual('updated')
-    expect(_result.hasDiffWithBase).toBeTruthy()
-    expect(await getFileContent(TRACKED_FILE)).toEqual(_changes.tracked)
-    expect(await getFileContent(UNTRACKED_FILE)).toEqual(_changes.untracked)
-    expect(
-      await gitLogMatches([
-        _commitMessage,
-        baseCommitMessage // fetch depth of base is 1
-      ])
-    ).toBeTruthy()
-  })
-
   it('tests create, squash merge, and update with identical changes (WBNB)', async () => {
     // Branches that have been squash merged appear to have a diff with the base due to
     // different commits for the same changes. To prevent creating pull requests
diff --git a/dist/index.js b/dist/index.js
index ebdaeda..893aae4 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -133,14 +133,6 @@ function isEven(git, branch1, branch2) {
             !(yield isBehind(git, branch1, branch2)));
     });
 }
-// Return true if the specified number of commits on branch1 and branch2 have a diff
-function commitsHaveDiff(git, branch1, branch2, depth) {
-    return __awaiter(this, void 0, void 0, function* () {
-        const diff1 = (yield git.exec(['diff', '--stat', `${branch1}..${branch1}~${depth}`])).stdout.trim();
-        const diff2 = (yield git.exec(['diff', '--stat', `${branch2}..${branch2}~${depth}`])).stdout.trim();
-        return diff1 !== diff2;
-    });
-}
 function splitLines(multilineString) {
     return multilineString
         .split('\n')
@@ -249,25 +241,20 @@ function createOrUpdateBranch(git, commitMessage, base, branch, branchRemoteName
             yield git.checkout(branch);
             // Reset the branch if one of the following conditions is true.
             // - If the branch differs from the recreated temp branch.
-            // - If the number of commits ahead of the base branch differs between the branch and
-            //   temp branch. This catches a case where the base branch has been force pushed to
-            //   a new commit.
             // - If the recreated temp branch is not ahead of the base. This means there will be
             //   no pull request diff after the branch is reset. This will reset any undeleted
             //   branches after merging. In particular, it catches a case where the branch was
             //   squash merged but not deleted. We need to reset to make sure it doesn't appear
             //   to have a diff with the base due to different commits for the same changes.
-            // - If the diff of the commits ahead of the base branch differs between the branch and
-            //   temp branch. This catches a case where changes have been partially merged to the
-            //   base. The overall diff is the same, but the branch needs to be rebased to show
-            //   the correct diff.
-            //
+            // - If the number of commits ahead of the base branch differs between the branch and
+            //   temp branch. This catches a case where the base branch has been force pushed to
+            //   a new commit.
             // For changes on base this reset is equivalent to a rebase of the pull request branch.
             const branchCommitsAhead = yield commitsAhead(git, base, branch);
             if ((yield git.hasDiff([`${branch}..${tempBranch}`])) ||
                 branchCommitsAhead != tempBranchCommitsAhead ||
-                !(tempBranchCommitsAhead > 0) || // !isAhead
-                (yield commitsHaveDiff(git, branch, tempBranch, tempBranchCommitsAhead))) {
+                !(tempBranchCommitsAhead > 0) // !isAhead
+            ) {
                 core.info(`Resetting '${branch}'`);
                 // Alternatively, git switch -C branch tempBranch
                 yield git.checkout(branch, tempBranch);
diff --git a/docs/common-issues.md b/docs/common-issues.md
index b72acef..73dfcee 100644
--- a/docs/common-issues.md
+++ b/docs/common-issues.md
@@ -37,7 +37,7 @@ So the straightforward solution is to just not install them during the workflow
 
 - If hooks are automatically enabled by a framework, use an option provided by the framework to disable them. For example, for Husky users, they can be disabled with the `--ignore-scripts` flag, or by setting the `HUSKY` environment variable when the action runs.
   ```yml
-  uses: peter-evans/create-pull-request@v7
+  uses: peter-evans/create-pull-request@v6
   env:
     HUSKY: '0'
   ```
diff --git a/docs/concepts-guidelines.md b/docs/concepts-guidelines.md
index 1b408a7..4fcdbaa 100644
--- a/docs/concepts-guidelines.md
+++ b/docs/concepts-guidelines.md
@@ -92,7 +92,7 @@ In these cases, you *must supply* the `base` input so the action can rebase chan
 Workflows triggered by [`pull_request`](https://docs.github.com/en/actions/reference/events-that-trigger-workflows#pull_request) events will by default check out a merge commit. Set the `base` input as follows to base the new pull request on the current pull request's branch.
 
 ```yml
-      - uses: peter-evans/create-pull-request@v7
+      - uses: peter-evans/create-pull-request@v6
         with:
           base: ${{ github.head_ref }}
 ```
@@ -100,7 +100,7 @@ Workflows triggered by [`pull_request`](https://docs.github.com/en/actions/refer
 Workflows triggered by [`release`](https://docs.github.com/en/actions/reference/events-that-trigger-workflows#release) events will by default check out a tag. For most use cases, you will need to set the `base` input to the branch name of the tagged commit.
 
 ```yml
-      - uses: peter-evans/create-pull-request@v7
+      - uses: peter-evans/create-pull-request@v6
         with:
           base: main
 ```
@@ -186,7 +186,7 @@ Checking out a branch from a different repository from where the workflow is exe
 
       # Make changes to pull request here
 
-      - uses: peter-evans/create-pull-request@v7
+      - uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.PAT }}
 ```
@@ -216,7 +216,7 @@ How to use SSH (deploy keys) with create-pull-request action:
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 ```
 
 ### Push pull request branches to a fork
@@ -241,7 +241,7 @@ It will use their own fork to push code and create the pull request.
 
       # Make changes to pull request here
 
-      - uses: peter-evans/create-pull-request@v7
+      - uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.MACHINE_USER_PAT }}
           push-to-fork: machine-user/fork-of-repository
@@ -284,7 +284,7 @@ The following is an example of pushing to a fork using GitHub App tokens.
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           branch-token: ${{ steps.generate-token.outputs.token }}
           push-to-fork: owner/fork-of-repo
@@ -329,7 +329,7 @@ GitHub App generated tokens can be configured with fine-grained permissions and
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ steps.generate-token.outputs.token }}
 ```
@@ -357,7 +357,7 @@ In the following example, a pull request is being created in remote repo `owner/
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ steps.generate-token.outputs.token }}
 ```
@@ -386,7 +386,7 @@ In this example the `token` input is not supplied, so the action will use the re
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           sign-commits: true
 ```
@@ -405,7 +405,7 @@ In this example, the `token` input is generated using a GitHub App. This will si
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ steps.generate-token.outputs.token }}
           sign-commits: true
@@ -448,7 +448,7 @@ The action can use GPG to sign commits with a GPG key that you generate yourself
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.PAT }}
           committer: example <email@example.com>
@@ -478,7 +478,7 @@ jobs:
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 ```
 
 **Ubuntu container example:**
@@ -501,5 +501,5 @@ jobs:
       # Make changes to pull request here
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
 ```
diff --git a/docs/examples.md b/docs/examples.md
index d2b1316..6ffb502 100644
--- a/docs/examples.md
+++ b/docs/examples.md
@@ -49,7 +49,7 @@ jobs:
         run: |
           git log --format='%aN <%aE>%n%cN <%cE>' | sort -u > AUTHORS
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           commit-message: update authors
           title: Update AUTHORS
@@ -81,7 +81,7 @@ jobs:
           git fetch origin main:main
           git reset --hard main
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           branch: production-promotion
 ```
@@ -116,7 +116,7 @@ jobs:
           ./git-chglog -o CHANGELOG.md
           rm git-chglog
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           commit-message: update changelog
           title: Update Changelog
@@ -153,7 +153,7 @@ jobs:
           npx -p npm-check-updates ncu -u
           npm install
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
             token: ${{ secrets.PAT }}
             commit-message: Update dependencies
@@ -214,7 +214,7 @@ jobs:
       - name: Perform dependency resolution and write new lockfiles
         run: ./gradlew dependencies --write-locks
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
             token: ${{ secrets.PAT }}
             commit-message: Update dependencies
@@ -249,7 +249,7 @@ jobs:
           cargo update
           cargo upgrade --to-lockfile
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
             token: ${{ secrets.PAT }}
             commit-message: Update dependencies
@@ -307,7 +307,7 @@ jobs:
           # Update current release
           echo ${{ steps.swagger-ui.outputs.release_tag }} > swagger-ui.version
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           commit-message: Update swagger-ui to ${{ steps.swagger-ui.outputs.release_tag }}
           title: Update SwaggerUI to ${{ steps.swagger-ui.outputs.release_tag }}
@@ -351,7 +351,7 @@ jobs:
           git fetch upstream main:upstream-main
           git reset --hard upstream-main
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.PAT }}
           branch: upstream-changes
@@ -384,7 +384,7 @@ jobs:
             --domains quotes.toscrape.com \
             http://quotes.toscrape.com/
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           commit-message: update local website copy
           title: Automated Updates to Local Website Copy
@@ -481,7 +481,7 @@ jobs:
           echo "branch-name=$branch-name" >> $GITHUB_OUTPUT
       - name: Create Pull Request
         if: steps.autopep8.outputs.exit-code == 2
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           commit-message: autopep8 action fixes
           title: Fixes by autopep8 action
@@ -540,7 +540,7 @@ Note that the step where output variables are defined must have an id.
           echo "pr_title=$pr_title" >> $GITHUB_OUTPUT
           echo "pr_body=$pr_body" >> $GITHUB_OUTPUT
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           title: ${{ steps.vars.outputs.pr_title }}
           body: ${{ steps.vars.outputs.pr_body }}
@@ -566,7 +566,7 @@ The template is rendered using the [render-template](https://github.com/chuhlomi
             bar: that
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v6
         with:
           body: ${{ steps.template.outputs.result }}
 ```
diff --git a/docs/updating.md b/docs/updating.md
index ce6befa..5757441 100644
--- a/docs/updating.md
+++ b/docs/updating.md
@@ -1,19 +1,3 @@
-## Updating from `v6` to `v7`
-
-### Behaviour changes
-
-- Action input `git-token` has been renamed `branch-token`, to be more clear about its purpose. The `branch-token` is the token that the action will use to create and update the branch.
-- The action now handles requests that have been rate-limited by GitHub. Requests hitting a primary rate limit will retry twice, for a total of three attempts. Requests hitting a secondary rate limit will not be retried.
-- The `pull-request-operation` output now returns `none` when no operation was executed.
-- Removed deprecated output environment variable `PULL_REQUEST_NUMBER`. Please use the `pull-request-number` action output instead.
-
-### What's new
-
-- The action can now sign commits as `github-actions[bot]` when using `GITHUB_TOKEN`, or your own bot when using [GitHub App tokens](concepts-guidelines.md#authenticating-with-github-app-generated-tokens). See [commit signing](concepts-guidelines.md#commit-signature-verification-for-bots) for details.
-- Action input `draft` now accepts a new value `always-true`. This will set the pull request to draft status when the pull request is updated, as well as on creation.
-- A new action input `maintainer-can-modify` indicates whether [maintainers can modify](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork) the pull request. The default is `true`, which retains the existing behaviour of the action.
-- A new output `pull-request-commits-verified` returns `true` or `false`, indicating whether GitHub considers the signature of the branch's commits to be verified.
-
 ## Updating from `v5` to `v6`
 
 ### Behaviour changes
diff --git a/package-lock.json b/package-lock.json
index 676637d..686354c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "create-pull-request",
-  "version": "7.0.0",
+  "version": "6.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "create-pull-request",
-      "version": "7.0.0",
+      "version": "6.0.0",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.10.1",
diff --git a/package.json b/package.json
index 342bcf1..e37922d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "create-pull-request",
-  "version": "7.0.0",
+  "version": "6.0.0",
   "private": true,
   "description": "Creates a pull request for changes to your repository in the actions workspace",
   "main": "lib/main.js",
diff --git a/src/create-or-update-branch.ts b/src/create-or-update-branch.ts
index f835006..175a311 100644
--- a/src/create-or-update-branch.ts
+++ b/src/create-or-update-branch.ts
@@ -124,22 +124,6 @@ async function isEven(
   )
 }
 
-// Return true if the specified number of commits on branch1 and branch2 have a diff
-async function commitsHaveDiff(
-  git: GitCommandManager,
-  branch1: string,
-  branch2: string,
-  depth: number
-): Promise<boolean> {
-  const diff1 = (
-    await git.exec(['diff', '--stat', `${branch1}..${branch1}~${depth}`])
-  ).stdout.trim()
-  const diff2 = (
-    await git.exec(['diff', '--stat', `${branch2}..${branch2}~${depth}`])
-  ).stdout.trim()
-  return diff1 !== diff2
-}
-
 function splitLines(multilineString: string): string[] {
   return multilineString
     .split('\n')
@@ -286,26 +270,20 @@ export async function createOrUpdateBranch(
 
     // Reset the branch if one of the following conditions is true.
     // - If the branch differs from the recreated temp branch.
-    // - If the number of commits ahead of the base branch differs between the branch and
-    //   temp branch. This catches a case where the base branch has been force pushed to
-    //   a new commit.
     // - If the recreated temp branch is not ahead of the base. This means there will be
     //   no pull request diff after the branch is reset. This will reset any undeleted
     //   branches after merging. In particular, it catches a case where the branch was
     //   squash merged but not deleted. We need to reset to make sure it doesn't appear
     //   to have a diff with the base due to different commits for the same changes.
-    // - If the diff of the commits ahead of the base branch differs between the branch and
-    //   temp branch. This catches a case where changes have been partially merged to the
-    //   base. The overall diff is the same, but the branch needs to be rebased to show
-    //   the correct diff.
-    //
+    // - If the number of commits ahead of the base branch differs between the branch and
+    //   temp branch. This catches a case where the base branch has been force pushed to
+    //   a new commit.
     // For changes on base this reset is equivalent to a rebase of the pull request branch.
     const branchCommitsAhead = await commitsAhead(git, base, branch)
     if (
       (await git.hasDiff([`${branch}..${tempBranch}`])) ||
       branchCommitsAhead != tempBranchCommitsAhead ||
-      !(tempBranchCommitsAhead > 0) || // !isAhead
-      (await commitsHaveDiff(git, branch, tempBranch, tempBranchCommitsAhead))
+      !(tempBranchCommitsAhead > 0) // !isAhead
     ) {
       core.info(`Resetting '${branch}'`)
       // Alternatively, git switch -C branch tempBranch