## 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_restricted: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        admin = User.objects.create_and_join(
            organization=self.organization, email="y@x.com", password=None, level=OrganizationMembership.Level.ADMIN
        )
        self.client.force_login(admin)
        _, response_data = self._create_insight(
            data={"name": "on a restricted and unrestricted dashboard", "dashboards": [dashboard_restricted.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_both_restricted_dashboard_does_not_restrict_with_explicit_privilege(self):