--- a/hgext/fix.py	Wed Jan 25 18:46:20 2023 +0100
+++ b/hgext/fix.py	Wed Jan 25 19:12:31 2023 +0100
@@ -776,7 +776,7 @@
     newp1 = replacements.get(oldp1, oldp1)
     if newp1 != oldp1:
         assert repo.dirstate.p2() == nullid
-        with repo.dirstate.parentchange(repo):
+        with repo.dirstate.changing_parents(repo):
             scmutil.movedirstate(repo, repo[newp1])