message: null-guard MatrixClientPeg in RoomViewStore
diff: @@ -159,7 +159,7 @@ class RoomViewStore extends Store {
  }
  case 'sync_state':
  this._setState({
  - matrixClientIsReady: MatrixClientPeg.get().isInitialSyncComplete(),
  + matrixClientIsReady: MatrixClientPeg.get() && MatrixClientPeg.get().isInitialSyncComplete(),
  });
  break;
  }
  