ubuntu tweack "miscellaneous" crash

[Roberto Guarino]

The Miscellaneous tab report this:

Distribution: Ubuntu 12.04 precise
Application: Ubuntu Tweak 0.7.1-1~precise1
Desktop:ubuntu

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/main.py", line 497, in _load_module
    page = module()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/tweaks/misc.py", line 54, in __init__
    self.set_the_natural_status()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/tweaks/misc.py", line 169, in set_the_natural_status
    self.natural_scrolling_switch.set_active(self.get_natural_scrolling_enabled())
  File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function
    return info.invoke(*args, **kwargs)
TypeError: Argument 1 does not allow None as a value