## 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
dashboard: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        _, response_data = self._create_insight(
            data={"name": "on a restricted dashboard", "dashboards": [dashboard.pk]}
        )
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_VIEW)
    def test_an_insight_on_both_restricted_and_unrestricted_dashboard_has_no_restrictions(self):
        dashboard_restricted: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        dashboard_unrestricted: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.EVERYONE_IN_PROJECT_CAN_EDIT
        )
        _, response_data = self._create_insight(
            data={
                "name": "on a restricted and unrestricted dashboard",
                "dashboards": [dashboard_restricted.pk, dashboard_unrestricted.pk],
            }
        )
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_EDIT)
    def test_an_insight_on_restricted_dashboard_does_not_restrict_admin(self):