message: fix: muc discovery
  ignore components which does not support DiscoInfo on determining
  MUC services at XMPP server
diff: @@ -115,6 +115,10 @@ class MultiUserJoinDialog {
  return discoInfoRepository.hasFeature(discoInfo, 'http://jabber.org/protocol/muc');
  }).then((hasFeature) => {
  return hasFeature ? jid : undefined;
  + }).catch((stanza) => {
  + const from = $(stanza).attr('from') || '';
  +
  + Log.info(`Ignore ${from} as MUC provider, because could not load disco info.`);
  });
  promises.push(promise);
  