Unable to find direct lhs parent for <RevisionMetadata for revision 2801

[Luke-Jr]

Attempting to checkout/branch/pull a Svn repo:

The svn+ syntax is deprecated, use https://svn.somewhere.com/svn/branches/abc instead.
bzr: ERROR: exceptions.AssertionError: Unable to find direct lhs parent for <RevisionMetadata for revision 2801, path tags/abc_basic_passing in repository 'f396537e-aa06-0410-a58a-900005392f0b'>

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 893, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 839, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 539, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.5/site-packages/bzrlib/builtins.py", line 792, in run
    result = branch_to.pull(branch_from, overwrite, revision_id)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1957, in pull
    _override_hook_target=_override_hook_target)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1758, in pull
    result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
  File "/usr/lib/python2.5/site-packages/bzrlib/tag.py", line 211, in merge_to
    source_dict = self.get_tag_dict()
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/tags.py", line 103, in get_tag_dict
    revnum=self.branch._revnum)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 138, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/repository.py", line 743, in find_tags
    layout=layout, mapping=mapping, from_revnum=0, to_revnum=revnum)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 138, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/repository.py", line 706, in find_tags_between
    refer_revmeta = revmeta.get_tag_revmeta(mapping)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/revmeta.py", line 210, in get_tag_revmeta
    lhs_parent_revmeta = self.get_lhs_parent_revmeta(mapping)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/revmeta.py", line 331, in get_lhs_parent_revmeta
    nm = get_next_parent(self)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/revmeta.py", line 326, in get_next_parent
    pm = nm.get_direct_lhs_parent_revmeta()
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/revmeta.py", line 298, in get_direct_lhs_parent_revmeta
    self._direct_lhs_parent_revmeta = metaiterator.get_lhs_parent(self)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/revmeta.py", line 935, in get_lhs_parent
    raise AssertionError("Unable to find direct lhs parent for %r" % revmeta)
AssertionError: Unable to find direct lhs parent for <RevisionMetadata for revision 2801, path tags/abc_basic_passing in repository 'f396537e-aa06-0410-a58a-900005392f0b'>

bzr 1.10 on python 2.5.2 (linux2)
arguments: ['/usr/bin/bzr', 'pull', 'svn+https://svn.somewhere.com/svn/branches/abc']
encoding: 'ANSI_X3.4-1968', fsenc: 'ANSI_X3.4-1968', lang: None
plugins:
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
  svn /usr/lib/python2.5/site-packages/bzrlib/plugins/svn [0.5.0.rc.1]
*** Bazaar has encountered an internal error.
    Please report a bug at https://bugs.launchpad.net/bzr/+filebug
    including this traceback, and a description of what you
    were doing when the error occurred.

[Luke-Jr (luke-jr)]

Affects 0.10 and 0.11 at least.

[Luke-Jr (luke-jr)]

Sorry, Bazaar 1.10/1.11