viz tracebacks when refreshing on an uncommitted and recommitted branch

[Dan Watkins]

I get the following traceback when pressing the refresh button after uncommitting a few revisions, shelving changes and recommitting changes:

Traceback (most recent call last):
  File "../../bzr-gtk/gtk/branchview/treemodel.py", line 106, in on_get_value
  File "/usr/lib/python2.4/site-packages/bzrlib/decorators.py", line 127, in read_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/repository.py", line 1087, in get_revisions
    return self._get_revisions(revision_ids)
  File "/usr/lib/python2.4/site-packages/bzrlib/decorators.py", line 127, in read_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/repository.py", line 1096, in _get_revisions
    self.get_transaction())
  File "/usr/lib/python2.4/site-packages/bzrlib/store/revision/knit.py", line 88, in get_revisions
    texts = self._get_serialized_revisions(revision_ids, transaction)
  File "/usr/lib/python2.4/site-packages/bzrlib/store/revision/knit.py", line 104, in _get_serialized_revisions
    return vf.get_texts(revision_ids)
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 1061, in get_texts
    return [''.join(l) for l in self.get_line_list(version_ids)]
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 1067, in get_line_list
    text_map, content_map = self._get_content_maps(version_ids)
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 1085, in _get_content_maps
    record_map = self._get_record_map(version_ids)
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 1049, in _get_record_map
    for component_id, content, digest in \
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 2494, in read_records_iter
    for (version_id, index_memo), data in \
  File "/usr/lib/python2.4/site-packages/bzrlib/knit.py", line 2084, in get_raw_records
    reader = pack.make_readv_reader(transport, path, offsets)
  File "/usr/lib/python2.4/site-packages/bzrlib/pack.py", line 202, in make_readv_reader
    result = ContainerReader(ReadVFile(
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 679, in readv
    return self._readv(relpath, offsets)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 691, in _readv
    fp = self.get(relpath)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/local.py", line 148, in get
    self._translate_error(e, path)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 347, in _translate_error
    raise errors.NoSuchFile(path, extra=e)
bzrlib.errors.NoSuchFile: No such file: u'/home/daniel/devel/mirror/.bzr/repository/packs/7950d4fca52f25373102036d174ea777.pack': [Errno 2] No such file or directory: u'/home/daniel/devel/mirror/.bzr/repository/packs/7950d4fca52f25373102036d174ea777.pack'