--- a/tests/test-issue619.t	Fri Nov 28 02:57:33 2014 +0100
+++ b/tests/test-issue619.t	Mon Dec 01 05:18:12 2014 -0800
@@ -28,3 +28,9 @@
   abort: merging with a working directory ancestor has no effect
   [255]
 
+Even with strange revset (issue4465)
+
+  $ hg merge ::.
+  abort: merging with a working directory ancestor has no effect
+  [255]
+