def _get_redirect_user_url(self):
        # FIXME: raw_data is still none, is this wanted?
        return (None if self.raw_data is None else
                self.raw_data.get('_redirect_target'))
Returns the user URL.  By default only the `_redirect_target` from
dataset/ETHPy150Open mitsuhiko/fungiform/fungiform/forms.py/FormBase._get_redirect_user_url