--- a/mercurial/manifest.py	Tue Dec 10 21:55:13 2024 -0500
+++ b/mercurial/manifest.py	Tue Oct 22 22:44:32 2024 -0400
@@ -2350,7 +2350,7 @@
         return self.read().find(key)
 
 
-class memtreemanifestctx:  # (repository.imanifestrevisionwritable)
+class memtreemanifestctx(repository.imanifestrevisionwritable):
     _treemanifest: treemanifest
 
     def __init__(self, manifestlog, dir=b''):