diff -r a0674e916fb6 -r f254fc73d956 mercurial/context.py
--- a/mercurial/context.py	Thu Mar 03 17:39:20 2022 -0800
+++ b/mercurial/context.py	Thu Mar 03 18:28:30 2022 -0800
@@ -123,7 +123,7 @@
         deleted, unknown, ignored = s.deleted, s.unknown, s.ignored
         deletedset = set(deleted)
         d = mf1.diff(mf2, match=match, clean=listclean)
-        for fn, value in pycompat.iteritems(d):
+        for fn, value in d.items():
             if fn in deletedset:
                 continue
             if value is None: