bzr: ERROR: exceptions.ValueError: too many values to unpack

[Jean-Paul Calderone]

Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 923, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1128, in run_bzr
  File "bzrlib\commands.pyo", line 676, in run_argv_aliases
  File "bzrlib\commands.pyo", line 698, in run
  File "bzrlib\cleanup.pyo", line 135, in run_simple
  File "bzrlib\cleanup.pyo", line 165, in _do_with_cleanups
  File "bzrlib\builtins.pyo", line 1448, in run
  File "C:/Program Files/Bazaar/plugins\svn\branch.py", line 387, in create_checkout
  File "C:/Program Files/Bazaar/plugins\svn\branch.py", line 332, in _create_heavyweight_checkout
  File "bzrlib\branch.pyo", line 1120, in pull
  File "C:/Program Files/Bazaar/plugins\svn\branch.py", line 825, in pull
  File "C:/Program Files/Bazaar/plugins\svn\tags.py", line 386, in merge_to
ValueError: too many values to unpack

bzr 2.5b2 on python 2.6.6 (Windows-XP-5.1.2600-SP3)
arguments: ['C:\\Program Files\\Bazaar\\bzr.EXE', 'checkout',
    'svn://svn.twistedmatrix.com/svn/Twisted//branches/win32er-close-5233-2',
    'Twisted']
plugins: bzrtools[2.4.1], changelog_merge[2.5b2], colo[0.3.1dev],
    explorer[1.2.1], fastimport[0.12.0dev], launchpad[2.5b2], loom[2.2.1dev],
    netrc_credential_store[2.5b2], news_merge[2.5b2], pipeline[1.1.0],
    qbzr[0.21.1], rewrite[0.6.3dev], svn[1.1.0], upload[1.0.1dev],
    xmloutput[0.8.7]
encoding: 'cp1252', fsenc: 'mbcs', lang: None

*** Bazaar has encountered an internal error. This probably indicates a
    bug in Bazaar. You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.

[Jelmer Vernooij (jelmer)]

This is an incompatibility between bzr 2.5b2 and older versions of bzr-svn, fixed in bzr-svn trunk.

[Jean-Paul Calderone (exarkun)]

Thanks. Since bzr-svn depends on subvertpy 0.8.8, I can't test this; I downgraded my bzr install instead, to get an intermittent failure instead of a persistent failure.