message: [FIX] URL preview
diff: @@ -123,8 +123,8 @@ const createOrUpdateSubscription = async(subscription, room) => {
  );
  }
  - if (sub.lastMessage) {
  - const lastMessage = buildMessage(sub.lastMessage);
  + if (tmp.lastMessage) {
  + const lastMessage = buildMessage(tmp.lastMessage);
  const messagesCollection = db.collections.get('messages');
  let messageRecord;
  try {
  