## Bug description

If I mark an insight as a favorite (⭐) and then refresh, the insight is no longer marked as a favorite although it is (can see it in Favorites).

<img width="390" alt="image" src="https://user-images.githubusercontent.com/30181361/182802236-9ecf0531-899c-4f25-ae86-bc233cefdc2f.png">

Note that I'm in the _Favorites_ tab and that _Bug example_ is not starred.
## Environment

- [x] PostHog Cloud
- [ ] self-hosted PostHog, version/commit: please provide

posthog/api/test/test_insight.py
self.assertEqual(sorted(response_data["tags"]), sorted(["add", "these", "tags"]))
            self.assertEqual(response_data["created_by"]["distinct_id"], self.user.distinct_id)
            self.assertEqual(
                response_data["effective_restriction_level"], Dashboard.RestrictionLevel.EVERYONE_IN_PROJECT_CAN_EDIT
            )
            self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_EDIT)
            response = self.client.get(f"/api/projects/{self.team.id}/insights/{insight_id}",)
            self.assertEqual(response.json()["name"], "insight new name")
            self.assert_insight_activity(
                insight_id,
                [
                    {
                        "user": {"first_name": "", "email": "user1@posthog.com"},
                        "activity": "updated",
                        "scope": "Insight",
                        "item_id": str(insight_id),
                        "detail": {
                            "changes": [
                                {
                                    "type": "Insight",
                                    "action": "changed",
                                    "field": "tags",
                                    "before": [],
                                    "after": ["add", "tags", "these"],
                                },
                                {
                                    "type": "Insight",
                                    "action": "changed",
                                    "field": "name",
                                    "before": "insight name",