--- a/hgext/git/manifest.py	Sun Jan 05 22:26:16 2025 -0500
+++ b/hgext/git/manifest.py	Mon Jan 06 00:30:55 2025 -0500
@@ -245,7 +245,7 @@
         except KeyError:
             return b''
 
-    def copy(self) -> 'gittreemanifest':
+    def copy(self) -> gittreemanifest:
         return gittreemanifest(
             self._git_repo, self._tree, dict(self._pending_changes)
         )