message: Also stop peeking on unmount
diff: @@ -472,6 +472,10 @@ export default createReactClass({
  RoomScrollStateStore.setScrollState(this.state.roomId, this._getScrollState());
  }
  + if (this.state.shouldPeek) {
  + this.context.stopPeeking();
  + }
  +
  // stop tracking room changes to format permalinks
  this._stopAllPermalinkCreators();
  