--- a/tests/test-unamend.t	Tue Oct 06 13:34:51 2020 +0200
+++ b/tests/test-unamend.t	Thu Oct 29 13:54:25 2020 +0100
@@ -405,8 +405,10 @@
   $ hg co -q 0
   $ hg mv a b
   $ hg ci -qm 'move to a b'
+  warning: commit already existed in the repository!
   $ hg mv b c
   $ hg amend
+  warning: commit already existed in the repository!
   $ hg mv c d
   $ hg unamend
   $ hg st --copies --change .