def full_clean(self):
        super(AuthenticationSettingsForm, self).full_clean()

        if self.data:
            # Note that this isn't validated yet, but that's okay given our
            # usage. It's a bit of a hack though.
            auth_backend = (self['auth_backend'].data or
                            self.fields['auth_backend'].initial)

            if auth_backend in self.auth_backend_forms:
                self.auth_backend_forms[auth_backend].full_clean()
        else:
            for form in six.itervalues(self.auth_backend_forms):
                form.full_clean()
Tests for pagination. It takes toooo long.
dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/admin/forms.py/AuthenticationSettingsForm.full_clean--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-build/python-libs/gdata/tests/gdata_tests/apps/service_test.py/AppsServiceUnitTest03.test001Pagenation