diff -r 03726f5b6092 -r 2c86b9587740 hgext/rebase.py
--- a/hgext/rebase.py	Mon Sep 21 10:09:39 2020 -0700
+++ b/hgext/rebase.py	Mon Sep 21 11:12:58 2020 -0700
@@ -642,7 +642,7 @@
                         cmdutil.bailifchanged(repo)
                         self.inmemory = False
                         self._assignworkingcopy()
-                        mergemod.update(
+                        mergemod._update(
                             repo,
                             p1,
                             branchmerge=False,
@@ -1517,7 +1517,7 @@
 
     # See explanation in merge.graft()
     mergeancestor = repo.changelog.isancestor(p1ctx.node(), ctx.node())
-    stats = mergemod.update(
+    stats = mergemod._update(
         repo,
         rev,
         branchmerge=True,