bzr-svn broken when branching under a svn working-copy

[Adrian Dries]

(Using bzr-0.18-1, bzr-svn-0.3.5-1 from gutsy, otherwise feisty)

~ is under svn, ~/tmp is not. 'svnhome' is an ssh alias.  It's
unavailable because it's on an encrypted filesystem.

Why should a higher-level svn working-copy affect this checkout?

Output follows:

[~/tmp/zookeepr]
avdd at modest$ bzr branch http://repo.spacepants.org/zookeepr/mainline zookeepr
bzr: ERROR: libsvn._core.SubversionException: ("No repository found in 'svn+ssh://svnhome/home/avdd/svn/homes/linux-full'", 210005)

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 729, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 691, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 389, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.5/site-packages/bzrlib/builtins.py", line 871, in run
    dir = br_from.bzrdir.sprout(to_transport.base, revision_id)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 777, in sprout
    result_repo = result.find_repository()
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 405, in find_repository
    next_transport)[0]
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 611, in open_containing_from_transport
    result = BzrDir.open_from_transport(a_transport)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 571, in open_from_transport
    return format.open(transport, _found=True)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 1372, in open
    return self._open(transport)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/checkout.py", line 706, in _open
    return SvnCheckout(transport, self)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/checkout.py", line 630, in __init__
    self.remote_transport = SvnRaTransport(svn_url)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/svn/transport.py", line 109, in __init__
    self._client, self.pool)
  File "/var/lib/python-support/python2.5/libsvn/client.py", line 1203, in svn_client_open_ra_session
    return apply(_client.svn_client_open_ra_session, args)
SubversionException: ("No repository found in 'svn+ssh://svnhome/home/avdd/svn/homes/linux-full'", 210005)

bzr 0.18.0 on python 2.5.1.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'branch', 'http://repo.spacepants.org/zookeepr/mainline', 'zookeepr']

** please send this report to bazaar at lists.ubuntu.com