"Ancestry ends with <...>, not null" error while branching lp:ipython

[Jean-Francois Roy]

jfroy:Source bahamut$ bzr branch lp:ipython
bzr: ERROR: exceptions.AssertionError: Ancestry ends with '<email address hidden>', not null.

Traceback (most recent call last):
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 923, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 868, in run_bzr
    ret = run(*run_argv)
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 547, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/Library/Python/2.6/site-packages/bzrlib/builtins.py", line 1100, in run
    source_branch=br_from)
  File "/Library/Python/2.6/site-packages/bzrlib/bzrdir.py", line 1134, in sprout
    result_repo.fetch(source_repository, fetch_spec=fetch_spec)
  File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 1133, in fetch
    find_ghosts=find_ghosts, fetch_spec=fetch_spec)
  File "/Library/Python/2.6/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3341, in fetch
    pb, find_ghosts, fetch_spec=fetch_spec)
  File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 103, in __init__
    self.__fetch()
  File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 130, in __fetch
    self._fetch_everything_for_search(search, pp)
  File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 156, in _fetch_everything_for_search
    stream, from_format, [])
  File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3590, in insert_stream
    return self._locked_insert_stream(stream, src_format)
  File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3600, in _locked_insert_stream
    for substream_type, substream in stream:
  File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3730, in get_stream
    revs = search.get_keys()
  File "/Library/Python/2.6/site-packages/bzrlib/graph.py", line 1524, in get_keys
    "Ancestry ends with %r, not null." % (keys[-1],))
AssertionError: Ancestry ends with '<email address hidden>', not null.

bzr 1.13dev on python 2.6.1 (darwin)
arguments: ['/usr/local/bin/bzr', 'branch', 'lp:ipython']
encoding: 'UTF-8', fsenc: 'utf-8', lang: 'en_US.UTF-8'
plugins:
  keychain_credential_store /Volumes/Crossroads/bahamut/.bazaar/plugins/keychain_credential_store [unknown]
  launchpad /Library/Python/2.6/site-packages/bzrlib/plugins/launchpad [unknown]
  netrc_credential_store /Library/Python/2.6/site-packages/bzrlib/plugins/netrc_credential_store [unknown]
  svn /Volumes/Crossroads/bahamut/.bazaar/plugins/svn [0.5.3dev]

Using bzr.dev updated shortly before issuing the command.

[Andrew Bennetts (spiv)]

I've sent a fix for this to bazaar@ mailing list.

[Andrew Bennetts (spiv)]

This is fixed in bzr.dev r4103.