diff -r e5fb14a07866 -r 46c318b9b9a4 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Mon Jul 19 07:23:55 2021 +0200
+++ b/mercurial/scmutil.py	Thu Jul 15 04:34:51 2021 +0200
@@ -1487,13 +1487,13 @@
     s = newctx.status(oldctx, match=match)
 
     for f in s.modified:
-        ds.update_file_reference(f, p1_tracked=True)
+        ds.update_file_p1(f, p1_tracked=True)
 
     for f in s.added:
-        ds.update_file_reference(f, p1_tracked=False)
+        ds.update_file_p1(f, p1_tracked=False)
 
     for f in s.removed:
-        ds.update_file_reference(f, p1_tracked=True)
+        ds.update_file_p1(f, p1_tracked=True)
 
     # Merge old parent and old working dir copies
     oldcopies = copiesmod.pathcopies(newctx, oldctx, match)