fix(core): Preserve escaped characters in gitignore patterns (#11171)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/core/src/utils/gitIgnoreParser.test.ts

@@ -234,4 +234,20 @@ src/*.tmp
       );
     });
   });
+  describe('Escaped Characters', () => {
+    beforeEach(async () => {
+      await setupGitRepo();
+    });
+
+    it('should correctly handle escaped characters in .gitignore', async () => {
+      await createTestFile('.gitignore', '\\#foo\n\\!bar');
+      // Create files with special characters in names
+      await createTestFile('bla/#foo', 'content');
+      await createTestFile('bla/!bar', 'content');
+
+      // These should be ignored based on the escaped patterns
+      expect(parser.isIgnored('bla/#foo')).toBe(true);
+      expect(parser.isIgnored('bla/!bar')).toBe(true);
+    });
+  });
 });