Merge branch 'flashing-hashtags-fix' into 'develop'

Hashtag timeline: stop flashing repeatedly

Closes #1166

See merge request soapbox-pub/soapbox!1891

app/soapbox/features/hashtag-timeline/index.tsx

@@ -95,7 +95,7 @@ export const HashtagTimeline: React.FC<IHashtagTimeline> = ({ params }) => {
     subscribe();
     dispatch(clearTimeline(`hashtag:${id}`));
     dispatch(expandHashtagTimeline(id, { tags }));
-  }, [id, tags]);
+  }, [id]);
 
   return (
     <Column label={`#${id}`} transparent withHeader={false}>