bzr: ERROR: bzrlib.errors.BzrCheckError: Internal check failed: Cannot add revision(s) to repository: missing chk node(s) for id_to_entry maps

bzr: ERROR: bzrlib.errors.BzrCheckError: Internal check failed: Cannot add revision(s) to repository: missing chk node(s) for id_to_entry maps

Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 946, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1150, in run_bzr
  File "bzrlib\commands.pyo", line 699, in run_argv_aliases
  File "bzrlib\commands.pyo", line 721, 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 1408, in run
  File "bzrlib\branch.pyo", line 1450, in create_checkout
  File "bzrlib\branch.pyo", line 1109, in pull
  File "bzrlib\decorators.pyo", line 217, in write_locked
  File "bzrlib\branch.pyo", line 3376, in pull
  File "bzrlib\branch.pyo", line 3506, in _pull
  File "bzrlib\decorators.pyo", line 217, in write_locked
  File "bzrlib\branch.pyo", line 3319, in _update_revisions
  File "bzrlib\decorators.pyo", line 217, in write_locked
  File "bzrlib\branch.pyo", line 3296, in fetch
  File "bzrlib\repository.pyo", line 724, in fetch
  File "bzrlib\decorators.pyo", line 217, in write_locked
  File "bzrlib\vf_repository.pyo", line 2499, in fetch
  File "bzrlib\fetch.pyo", line 75, in __init__
  File "bzrlib\fetch.pyo", line 102, in __fetch
  File "bzrlib\fetch.pyo", line 136, in _fetch_everything_for_search
  File "bzrlib\vf_repository.pyo", line 1970, in insert_stream
  File "bzrlib\repository.pyo", line 641, in commit_write_group
  File "bzrlib\repofmt\pack_repo.pyo", line 1711, in _commit_write_group
  File "bzrlib\repofmt\pack_repo.pyo", line 1591, in _commit_write_group
BzrCheckError: Internal check failed: Cannot add revision(s) to repository: missing chk node(s) for id_to_entry maps

bzr 2.4.1 on python 2.6.6 (Windows-XP-5.1.2600-SP3)
arguments: ['C:\\Program Files\\Bazaar\\bzr.EXE', 'checkout',
    'http://svn.twistedmatrix.com/bzr/Twisted//branches/iocp-win64-4669',
    'Twisted']
plugins: bzrtools[2.4.0], changelog_merge[2.4.1], colo[0.3.1dev],
    explorer[1.2.1], fastimport[0.12.0dev], launchpad[2.4.1], loom[2.2.1dev],
    netrc_credential_store[2.4.1], news_merge[2.4.1], 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.