--- a/tests/test-obsolete.t	Tue Jun 26 11:33:39 2012 +0200
+++ b/tests/test-obsolete.t	Mon Jun 25 15:18:47 2012 +0200
@@ -509,3 +509,9 @@
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     add obsol_d'''
   
+  $ hg push ../other-new/
+  pushing to ../other-new/
+  searching for changes
+  abort: Trying to push latecomer changeset: 6db5e282cb91!
+  (use 'hg stabilize' to get a stable history (or --force to proceed))
+  [255]