--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-issue1993.t	Thu Feb 25 16:54:14 2016 +0000
@@ -0,0 +1,48 @@
+  $ hg init a
+  $ cd a
+  $ echo a > a
+  $ hg ci -Am0
+  adding a
+  $ echo b > b
+  $ hg ci -Am1
+  adding b
+  $ hg tag -r0 default
+  warning: tag default conflicts with existing branch name
+  $ hg log
+  changeset:   2:30a83d1e4a1e
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     Added tag default for changeset f7b1eb17ad24
+  
+  changeset:   1:925d80f479bb
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     1
+  
+  changeset:   0:f7b1eb17ad24
+  tag:         default
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     0
+  
+  $ hg update 'tag(default)'
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  $ hg parents
+  changeset:   0:f7b1eb17ad24
+  tag:         default
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     0
+  
+  $ hg update 'branch(default)'
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg parents
+  changeset:   2:30a83d1e4a1e
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     Added tag default for changeset f7b1eb17ad24
+  
+
+  $ cd ..