message: Only show flair for groups with avatars set
  Fix vector-im/riot-web#5377
diff: @@ -127,7 +127,7 @@ export default class Flair extends React.Component {
  }
  const profiles = await this._getGroupProfiles(groups);
  if (!this.unmounted) {
  - this.setState({profiles});
  + this.setState({profiles: profiles.filter((profile) => {return profile.avatarUrl;})});
  }
  }
  