message: Null guard new function to reduce error spam
diff: @@ -157,6 +157,7 @@ class FlairStore extends EventEmitter {
  * @returns The profile if known, otherwise null.
  */
  getGroupProfileCachedFast(matrixClient, groupId) {
  + if (!matrixClient || !groupId) return null;
  if (this._groupProfiles[groupId]) {
  return this._groupProfiles[groupId];
  }
  