diff -r a506ed8ab8da -r 4ab1b854ce4e tests/test-topic.t
--- a/tests/test-topic.t	Mon Jun 15 16:56:44 2015 -0500
+++ b/tests/test-topic.t	Mon Jun 15 17:29:07 2015 -0500
@@ -550,3 +550,24 @@
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     start on fran
   |
+
+Amend a topic
+
+  $ hg topic watwat
+  $ hg ci --amend
+  $ hg log -Gr 'draft()'
+  @  changeset:   16:893ffcf66c1f
+  |  tag:         tip
+  |  topic:       watwat
+  |  parent:      13:d91cd8fd490e
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     fran?
+  |
+  o  changeset:   13:d91cd8fd490e
+  |  topic:       wat
+  |  parent:      3:a53952faf762
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     start on fran
+  |