Internal error on bzr push

[Aaron Small]

The error happened when attempting a first push on a new repository:

Server does not understand Bazaar network protocol 3, reconnecting. (Upgrade the server to avoid this.)
bzr: ERROR: exceptions.AssertionError: _remember_remote_is_before((2, 1)) called, but _remember_remote_is_before((1, 6)) was called previously.

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 853, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 1055, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 661, in run_argv_aliases
    return self.run_direct(**all_cmd_args)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 665, in run_direct
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/cleanup.py", line 122, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/cleanup.py", line 156, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/builtins.py", line 1146, in run
    use_existing_dir=use_existing_dir)
  File "/usr/lib/python2.5/site-packages/bzrlib/push.py", line 83, in _show_push_branch
    dir_to = bzrdir.BzrDir.open_from_transport(to_transport)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 878, in open_from_transport
    return format.open(transport, _found=True)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 2088, in open
    return self._open(transport)
  File "/usr/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 3327, in _open
    return remote.RemoteBzrDir(transport, self)
  File "/usr/lib/python2.5/site-packages/bzrlib/remote.py", line 115, in __init__
    self._probe_bzrdir()
  File "/usr/lib/python2.5/site-packages/bzrlib/remote.py", line 130, in _probe_bzrdir
    medium._remember_remote_is_before((2, 1))
  File "/usr/lib/python2.5/site-packages/bzrlib/smart/medium.py", line 615, in _remember_remote_is_before
    % (version_tuple, self._remote_version_is_before))
AssertionError: _remember_remote_is_before((2, 1)) called, but _remember_remote_is_before((1, 6)) was called previously.

bzr 2.1.1 on python 2.5.5 (Linux-2.6.32-3-686-i686-with-debian-squeeze-sid)
arguments: ['/usr/bin/bzr', 'push', '--remember', 'bzr+ssh://nellie@smeagle/home/nellie/work/community2010']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_US.UTF-8'
plugins:
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [2.1.1]
  netrc_credential_store /usr/lib/python2.5/site-packages/bzrlib/plugins/netrc_credential_store [2.1.1]
  news_merge /usr/lib/python2.5/site-packages/bzrlib/plugins/news_merge [2.1.1]

*** 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.

[Robert Collins (lifeless)]

Please upgrade to 2.1.2, which fixes this. Thanks.