[addressed] preceding whitespace causes exception

Event: {'account': None, 'responses': [], 'source': u'titan', 'addressed': u'dazzle', 'processed': False, 'time': datetime.datetime(2010, 2, 18, 16, 28, 59, 638332), 'identity': 7431L, 'message': {'raw': u' dazzle tvshow mythbusters', 'deaddressed': u' dazzle tvshow mythbusters', 'clean': u'tvshow mythbusters', 'stripped': u'dazzle tvshow mythbusters'}, 'type': u'message', 'public': True, 'channel': u'$public', 'sender': {'nick': u'massive', 'connection': u'massive', 'id': u'massive'}}
Traceback (most recent call last):
  File "/home/dazzle/ibid/dazzle/ibid/core.py", line 30, in _process
    processor.process(event)
  File "/home/dazzle/ibid/dazzle/ibid/plugins/__init__.py", line 111, in process
    method(event)
  File "./ibid/plugins/core.py", line 52, in handle_addressed
    pattern.search(event.message['raw']).group('body')
AttributeError: 'NoneType' object has no attribute 'group'