Fix reference to child model failing tests

Author: AlanCoding

ansible_base/rbac/validators.py

@@ -228,7 +228,7 @@ def validate_codename_for_model(codename: str, model: Union[Model, Type[Model],
         return name
 
     for rel, child_cls in permission_registry.get_child_models(model):
-        child_ct = permission_registry.content_type_model.objects.get_for_model(model)
+        child_ct = permission_registry.content_type_model.objects.get_for_model(child_cls)
         if name in codenames_for_content_type(child_ct):
             return name
     raise RuntimeError(f'The permission {name} is not valid for model {model._meta.model_name}')

test_app/tests/rbac/test_validators.py

@@ -144,7 +144,7 @@ def test_no_change_permission_without_view(enabled):
 
 
 @pytest.mark.django_db
-@pytest.mark.parametrize('cls', permission_registry.all_registered_models)
+@pytest.mark.parametrize('cls', sorted(permission_registry.all_registered_models, key=lambda cls: cls._meta.model_name))
 def test_db_model_validators_match(cls):
     "This is a code transition test, making sure new DB-backed methods match model-backed methods"