diff -r c392d57e8a06 -r 4675ab746a02 mercurial/unionrepo.py
--- a/mercurial/unionrepo.py	Wed Oct 23 16:32:34 2024 -0400
+++ b/mercurial/unionrepo.py	Wed Oct 23 16:36:50 2024 -0400
@@ -213,7 +213,7 @@
 
 class unionmanifest(unionrevlog, manifest.manifestrevlog):
     repotiprev: int
-    revlog2: manifest.ManifestRevlog
+    revlog2: manifest.manifestrevlog
 
     def __init__(self, nodeconstants, opener, opener2, linkmapper):
         # XXX manifestrevlog is not actually a revlog , so mixing it with