'bzr add *' fails when there is a branch inside another branch

[Fábio]

With bzr.dev, in an empty directory, this sequence of commands caused an exception.
If I try the bzr add without the "*", it doesn't happen.

rm -rf * .bzr
mkdir sub1
mkdir sub2
bzr init
bzr init sub1
bzr init sub2
bzr add *

bzr: ERROR: bzrlib.errors.PathNotChild: Path u'/home/fabio/temp2/sub2' is not a child of path u'/home/fabio/temp2/sub1'

Traceback (most recent call last):
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/commands.py", line 817, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/commands.py", line 779, in run_bzr
    ret = run(*run_argv)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/commands.py", line 477, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/builtins.py", line 383, in run
    no_recurse, action=action, save=not dry_run)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/mutabletree.py", line 50, in tree_write_locked
    return unbound(self, *args, **kwargs)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/mutabletree.py", line 314, in smart_add
    rf = _FastPath(self.relpath(filepath))
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/workingtree.py", line 449, in relpath
    return osutils.relpath(self.basedir, path)
  File "/home/fabio/repo/bazaar/bzr.dev/bzrlib/osutils.py", line 877, in relpath
    raise errors.PathNotChild(rp, base)
PathNotChild: Path u'/home/fabio/temp2/sub2' is not a child of path u'/home/fabio/temp2/sub1'

bzr 0.90.0dev0 on python 2.5.1.final.0 (linux2)
arguments: ['/home/fabio/bin/bzr', 'add', 'sub1', 'sub2']

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