kfet -- Fix auth tests

kfet/auth/tests.py

@@ -89,10 +89,7 @@ class GroupFormTests(TestCase):
 
         selected = [self.kf_perm1, self.kf_perm2]
 
-        # add user to some K-Fêt groups through UserGroupForm
-        data = {"groups": [group.pk for group in self.kfet_groups]}
-        form = UserGroupForm(data, instance=self.user)
-
+        data = {"name": "A Group", "permissions": [perm.pk for perm in selected]}
         form = GroupForm(data, instance=self.kf_group)
         form.save()