laga@prometheus:~/dev/mythbuntu$ bzr co http://bazaar.launchpad.net/~mythbuntu/mythbuntu/mythbuntu
Traceback (most recent call last):
  File "/usr/bin/bzr", line 85, in ?
    exit_val = bzrlib.commands.main(sys.argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 604, in main
    ret = run_bzr_catch_errors(argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 611, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 573, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 282, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.4/site-packages/bzrlib/builtins.py", line 812, in run
    source.create_checkout(to_location, revision_id, lightweight)
  File "/usr/lib/python2.4/site-packages/bzrlib/branch.py", line 623, in create_checkout
    return checkout.create_workingtree(revision_id)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 879, in create_workingtree
    return WorkingTreeFormat.get_default_format().initialize(self, revision_id)
  File "/usr/lib/python2.4/site-packages/bzrlib/workingtree.py", line 2037, in initialize
    build_tree(basis_tree, wt)
  File "/usr/lib/python2.4/site-packages/bzrlib/transform.py", line 996, in build_tree
    raise repr(entry.parent_id)
'tree_root-20070512013709-chhoobueo6io7q8m-1'