Multiple heads in in source repo make merging a pain

What steps will reproduce the problem?
1. hg clone https://code.google.com/p/httplib2/
2. cd httplib2
3. hg heads

What is the expected output? What do you see instead?
hg heads
*** failed to import extension hgext.qct: No module named qct
changeset:   198:6525cadfde53
tag:         tip
user:        Joe Gregorio <jcgregorio@google.com>
date:        Thu Jun 23 15:41:24 2011 -0400
summary:     Change out Go Daddy root ca for their ca bundle. Also add checks 
for version number matching when doing releases.

changeset:   116:ecfe07128337
branch:      ivo
user:        Ivo Timmermans <zxnrbl@gmail.com>
date:        Fri Jul 17 10:54:15 2009 +0200
summary:     Add untested GSSAPI authentication handlers for Kerberos.

changeset:   10:530da6dab120
branch:      antill-bug
parent:      8:52484af43ff4
user:        jcgregorio
date:        Tue Feb 14 04:06:41 2006 +0000
summary:     Added support for Python 2.3

What version of the product are you using? On what operating system?

mercurial 0.9.1

Please provide any additional information below.

Original issue reported on code.google.com by kkvilek...@gmail.com on 29 Sep 2011 at 5:23

trungn1992 / httplib2

Multiple heads in in source repo make merging a pain #181