## 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
"math": None,
                            "name": "$rageclick",
                            "type": "events",
                            "order": 2,
                            "properties": [],
                            "math_property": None,
                        },
                    ],
                    "display": "FunnelViz",
                    "interval": "day",
                    "date_from": "-30d",
                    "actions": [],
                    "new_entity": [],
                    "layout": "horizontal",
                },
                "name": "My Funnel One",
                "dashboard": dashboard.pk,
            },
        )
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
        objects = Insight.objects.all()
        self.assertEqual(objects.count(), 1)
        self.assertEqual(objects[0].filters["events"][1]["id"], "$rageclick")
        self.assertEqual(objects[0].filters["display"], "FunnelViz")
        self.assertEqual(objects[0].filters["interval"], "day")
        self.assertEqual(objects[0].filters["date_from"], "-30d")
        self.assertEqual(objects[0].filters["layout"], "horizontal")
        self.assertEqual(len(objects[0].short_id), 8)
    @patch("posthog.api.insight.synchronously_update_insight_cache", wraps=synchronously_update_insight_cache)
    def test_insight_refreshing(self, spy_update_insight_cache):