message: Fix error if topicEvents is undefined
diff: @@ -148,7 +148,7 @@ export const CommandMap = {
  if (!room) return reject('Bad room ID: ' + roomId);
  const topicEvents = room.currentState.getStateEvents('m.room.topic', '');
  - const topic = topicEvents.getContent().topic;
  + const topic = topicEvents && topicEvents.getContent().topic;
  const topicHtml = topic ? linkifyAndSanitizeHtml(topic) : _t('This room has no topic.');
  const InfoDialog = sdk.getComponent('dialogs.InfoDialog');
  