From 64240115db5d324fed9b6f63650e6af66074843a Mon Sep 17 00:00:00 2001
From: Peter Evans <18365890+peter-evans@users.noreply.github.com>
Date: Wed, 21 Jan 2026 17:59:11 +0000
Subject: [PATCH] fix: use --fixed-value flag when unsetting git config values

The tryConfigUnsetValue method was passing file paths directly to
`git config --unset`, which treats the value argument as an extended
regular expression. File paths contain `.` characters that would match
any character instead of literal periods, potentially causing incorrect
matches.

Adding the --fixed-value flag ensures the value is treated as a literal
string, fixing credential config cleanup in the v6-style authentication.
---
 dist/index.js              | 4 +++-
 src/git-command-manager.ts | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/dist/index.js b/dist/index.js
index f1684e5..6dc7025 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -979,7 +979,9 @@ class GitCommandManager {
             else {
                 args.push(globalConfig ? '--global' : '--local');
             }
-            args.push('--unset', configKey, configValue);
+            // Use --fixed-value to treat configValue as a literal string, not a regex pattern.
+            // This is important for file paths which contain regex special characters like '.'
+            args.push('--fixed-value', '--unset', configKey, configValue);
             const output = yield this.exec(args, { allowAllExitCodes: true });
             return output.exitCode === 0;
         });
diff --git a/src/git-command-manager.ts b/src/git-command-manager.ts
index 44d0177..b0ed1ae 100644
--- a/src/git-command-manager.ts
+++ b/src/git-command-manager.ts
@@ -368,7 +368,7 @@ export class GitCommandManager {
     } else {
       args.push(globalConfig ? '--global' : '--local')
     }
-    args.push('--unset', configKey, configValue)
+    args.push('--fixed-value', '--unset', configKey, configValue)
     const output = await this.exec(args, {allowAllExitCodes: true})
     return output.exitCode === 0
   }