message: Don't assume we have a valid event.
diff: @@ -156,8 +156,8 @@ module.exports = React.createClass({
  }
  const readPinsEvent = this.props.room.getAccountData("im.vector.room.read_pins");
  - if (readPinsEvent) {
  - const readStateEvents = readPinsEvent.getContent().event_ids;
  + if (readPinsEvent && readPinsEvent.getContent()) {
  + const readStateEvents = readPinsEvent.getContent().event_ids || [];
  if (readStateEvents) {
  return !readStateEvents.includes(currentPinEvent.getId());
  }
  