## 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
insight_id, response_data = self._create_insight(
            {
                "name": "a created dashboard",
                "filters": {
                    "events": [{"id": "$pageview"}],
                    "properties": [{"key": "$browser", "value": "Mac OS X"}],
                    "date_from": "-90d",
                },
            }
        )
        insight_short_id = response_data["short_id"]
        self.assertEqual(response_data["tags"], [])
        add_tags_response = self.client.patch(
            
            f"/api/projects/{self.team.id}/insights/{insight_id}",
            {"tags": ["2", "1", "3"]},
        )
        self.assertEqual(sorted(add_tags_response.json()["tags"]), ["1", "2", "3"])
        remove_tags_response = self.client.patch(
            f"/api/projects/{self.team.id}/insights/{insight_id}", {"tags": ["3"]},
        )
        self.assertEqual(remove_tags_response.json()["tags"], ["3"])
        self.assert_insight_activity(
            insight_id=insight_id,