--- a/mercurial/dirstate.py	Mon Jul 19 07:23:55 2021 +0200
+++ b/mercurial/dirstate.py	Thu Jul 15 04:34:51 2021 +0200
@@ -500,7 +500,7 @@
             return True
 
     @requires_parents_change
-    def update_file_reference(
+    def update_file_p1(
         self,
         filename,
         p1_tracked,