Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/hamster/applet.py", line 878, in show_preferences
    self.preferences_editor = PreferencesEditor(self)
  File "/usr/lib/python2.6/dist-packages/hamster/preferences.py", line 94, in __init__
    self._gui = stuff.load_ui_file("preferences.ui")
  File "/usr/lib/python2.6/dist-packages/hamster/stuff.py", line 36, in load_ui_file
    ui.add_from_file(os.path.join(SHARED_DATA_DIR, name))
GError: Duplicate object id 'dummy' on line 272 (previously on line 222)