fixes #84201

extensions/git/src/git.ts

@@ -1813,6 +1813,12 @@ export class Repository {
 	}
 
 	cleanupCommitEditMessage(message: string): string {
+		// If the message is a single line starting with whitespace followed by `#`, just allow it.
+		if (/^\s*#[^\n]*$/.test(message)) {
+			return message;
+		}
+
+		// Else, remove all lines starting with whitespace followed by `#`.
 		//TODO: Support core.commentChar
 		return message.replace(/^\s*#.*$\n?/gm, '').trim();
 	}