Add file through symlink caused error

Additional: The problem seemed to stem fromt he fact that I was adding a file which was in a bzr directory, but trying to do it via a symlink in my examples folder. This is probably a corner case.

I was adding a file to my bzr branch when I was informed by bzr to report a bug based on this traceback:

doctormo@delen~/Projects/python/coisas/examples/$ bzr add Coisas/classes/services.py
added examples/Coisas/classes
bzr: ERROR: exceptions.AttributeError: children

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 499, in run
    no_recurse, action=action, save=not dry_run)
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 52, in tree_write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 373, in smart_add
    added.extend(_add_one_and_parent(self, inv, None, rf, kind, action))
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 591, in _add_one_and_parent
    _FastPath(dirname(path.raw_path)), 'directory', action)
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 594, in _add_one_and_parent
    _add_one(tree, inv, parent_ie, path, kind, action)
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 611, in _add_one
    inv.add(entry)
  File "/usr/lib/python2.5/site-packages/bzrlib/inventory.py", line 1087, in add
    if entry.name in parent.children:
AttributeError: children

bzr 1.10 on python 2.5.2 (linux2)
arguments: ['/usr/bin/bzr', 'add', 'Coisas/classes/services.py']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_GB.UTF-8'
plugins:
  extmerge /home/doctormo/.bazaar/plugins/extmerge [unknown]
  gtk /usr/lib/python2.5/site-packages/bzrlib/plugins/gtk [0.95.0.final.1]
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
  pqm /home/doctormo/.bazaar/plugins/pqm [1.4dev]
*** 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.