bzr commit failed

Binary package hint: bzr

~$: bzr commit
/usr/lib/python2.4/site-packages/ctypes/__init__.py:10: RuntimeWarning: Python C API version mismatch for module _ctypes: This Python has API version 1013, module _ctypes has version 1012.
  from _ctypes import Union, Structure, Array
deleted tschau
bzr: ERROR: exceptions.UnicodeDecodeError: 'utf8' codec can't decode bytes in position 3-6: invalid data

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 650, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 612, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 304, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.4/site-packages/bzrlib/builtins.py", line 2118, in run
    reporter=reporter)
  File "/usr/lib/python2.4/site-packages/bzrlib/decorators.py", line 165, in write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/workingtree_4.py", line 244, in commit
    result = WorkingTree3.commit(self, message, revprops, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/decorators.py", line 165, in write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/mutabletree.py", line 160, in commit
    revprops=revprops, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/commit.py", line 332, in commit
    message = message_callback(self)
  File "/usr/lib/python2.4/site-packages/bzrlib/builtins.py", line 2095, in get_message
    my_message = edit_commit_message(template)
  File "/usr/lib/python2.4/site-packages/bzrlib/msgeditor.py", line 129, in edit_commit_message
    for line in codecs.open(msgfilename, 'r', bzrlib.user_encoding):
  File "codecs.py", line 631, in next
    return self.reader.next()
  File "codecs.py", line 562, in next
    line = self.readline()
  File "codecs.py", line 477, in readline
    data = self.read(readsize, firstline=True)
  File "codecs.py", line 424, in read
    newchars, decodedbytes = self.decode(data, self.errors)
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 3-6: invalid data

bzr 0.15.0 on python 2.5.1.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'commit']

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