new_list() FBV tries to assign List owner, but List() model has no such attr

src/apps/dashboard/tests/test_views.py

@@ -157,3 +157,10 @@ class MyListsTest(TestCase):
         correct_user = User.objects.create(email="a@b.cde")
         response = self.client.get(f"/apps/dashboard/users/{correct_user.id}/")
         self.assertEqual(response.context["owner"], correct_user)
+
+    def test_list_owner_is_saved_if_user_is_authenticated(self):
+        user = User.objects.create(email="a@b.cde")
+        self.client.force_login(user)
+        self.client.post("/apps/dashboard/new_list", data={"text": "new item"})
+        new_list = List.objects.get()
+        self.assertEqual(new_list.owner, user)