def __init__(self, *args, **kwargs):
        super(UserRegistrationForm, self).__init__(*args, **kwargs)
        del self.fields['username']
Restores the publisher's original publish method and unhooks the
dataset/ETHPy150Open ExCiteS/geokey/geokey/users/forms.py/UserRegistrationForm.__init__--crossover with--dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_library/src/rosbridge_library/internal/publishers.py/PublisherConsistencyListener.detach