Rev 1572: Fix BzrDir.open_containing of unsupported branches. in /home/robertc/source/baz/integration/

[Robert Collins]

------------------------------------------------------------
revno: 1572
revision-id: robertc at robertcollins.net-20060308025107-012d51f27c62e57f
parent: pqm at pqm.ubuntu.com-20060308003741-08afccbf89005e87
committer: Robert Collins <robertc at robertcollins.net>
branch nick: integration
timestamp: Wed 2006-03-08 13:51:07 +1100
message:
  Fix BzrDir.open_containing of unsupported branches.
modified:
  bzrlib/bzrdir.py               bzrdir.py-20060131065624-156dfea39c4387cb
  bzrlib/tests/test_bzrdir.py    test_bzrdir.py-20060131065654-deba40eef51cf220