## 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/insight.py
team = self.team
        filter = Filter(request=request, data={"insight": INSIGHT_FUNNELS}, team=self.team)
        if filter.funnel_viz_type == FunnelVizType.TRENDS:
            return {
                "result": ClickhouseFunnelTrends(team=team, filter=filter).run(),
                "timezone": team.timezone,
            }
        elif filter.funnel_viz_type == FunnelVizType.TIME_TO_CONVERT:
            return {
                "result": ClickhouseFunnelTimeToConvert(team=team, filter=filter).run(),
                "timezone": team.timezone,
            }
        else:
            funnel_order_class = get_funnel_order_class(filter)
            return {"result": funnel_order_class(team=team, filter=filter).run(), "timezone": team.timezone}
    
    
    
    
    
    
    @action(methods=["GET"], detail=False)
    def retention(self, request: request.Request, *args: Any, **kwargs: Any) -> Response: