[Pkg-bazaar-maint] Bug#664777: bzr: "bzr help branches" results in an exception

[Servilio Afre Puentes]

Package: bzr
Version: 2.5.0+bzr6492-1
Severity: normal

$ bzr help branches
bzr: ERROR: exceptions.AttributeError: 'Option' object has no attribute 'get_help_topic'

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 920, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1131, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 673, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 695, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 136, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 166, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1148, in ignore_pipe
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/builtins.py", line 4819, in run
    bzrlib.help.help(topic)
  File "/usr/lib/python2.7/dist-packages/bzrlib/help.py", line 52, in help
    topic_obj.get_help_topic()))
AttributeError: 'Option' object has no attribute 'get_help_topic'

bzr 2.5.1dev on python 2.7.2 (Linux-3.2.0-2-amd64-x86_64-with-debian-wheezy-
    sid)
arguments: ['/usr/bin/bzr', 'help', 'branches']
plugins: bash_completion[2.5.1dev], bzrtools[2.5.0],
    changelog_merge[2.5.1dev], explorer[1.2.2], gtk[0.104.0dev],
    launchpad[2.5.1dev], netrc_credential_store[2.5.1dev],
    news_merge[2.5.1dev], po_merge[2.5.1dev], qbzr[0.22.1], rewrite[0.6.3],
    svn[1.2.1], weave_fmt[2.5.1dev]
encoding: 'utf-8', fsenc: 'UTF-8', lang: 'en_CA.utf8'

*** Bazaar has encountered an internal error.  This probably indicates a
    bug in Bazaar.  You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.
$ 

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing'), (90, 'unstable'), (10, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_CA.utf8, LC_CTYPE=en_CA.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages bzr depends on:
ii  python         2.7.2-10
ii  python-bzrlib  2.5.0+bzr6492-1

Versions of packages bzr recommends:
ii  python-gpgme  0.2-2

Versions of packages bzr suggests:
pn  bzr-doc              <none>
pn  bzr-gtk              0.103.0+bzr780-1
pn  bzr-svn              1.2.1-1
pn  bzrtools             2.5-1
pn  python-bzrlib.tests  <none>

-- no debconf information