fixed user name api filter

cookbook/serializer.py

@@ -122,7 +122,7 @@ class SpaceFilterSerializer(serializers.ListSerializer):
             # if query is sliced it came from api request not nested serializer
             return super().to_representation(data)
         if self.child.Meta.model == User:
-            data = User.objects.filter(userspace__space=self.context['request'].user.get_active_space()).all()
+            data = data.filter(userspace__space=self.context['request'].user.get_active_space()).all()
         else:
             data = data.filter(**{'__'.join(data.model.get_space_key()): self.context['request'].space})
         return super().to_representation(data)

cookbook/tests/api/test_api_username.py

@@ -64,6 +64,7 @@ def test_list_space(u1_s1, u2_s1, u1_s2, space_2):
     assert len(json.loads(u1_s2.get(reverse(LIST_URL)).content)) == 1
 
     u = auth.get_user(u2_s1)
+    u.userspace_set.first().delete()
     UserSpace.objects.create(user=u, space=space_2)
 
     assert len(json.loads(u1_s1.get(reverse(LIST_URL)).content)) == 1