--- a/tests/test-unamend.t	Mon Jan 24 21:12:19 2022 -0800
+++ b/tests/test-unamend.t	Mon Jan 24 21:17:04 2022 -0800
@@ -443,8 +443,5 @@
   A left
   $ hg amend
   $ hg unamend
-  $ hg st --rev 1 --rev .
-  A right
-  R left (known-bad-output !)
-  $ hg st --rev 2 --rev .
-  A left (missing-correct-output !)
+  abort: cannot unamend merge changeset
+  [10]