--- a/tests/test-evolve-topic.t	Fri Jul 14 01:32:34 2017 +0200
+++ b/tests/test-evolve-topic.t	Fri Jul 14 01:49:43 2017 +0200
@@ -211,6 +211,7 @@
   $ hg prev
   no parent in topic "bar"
   (do you want --no-topic)
+  [1]
   $ hg prev --no-topic
   switching to topic foo
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved