code: function dpatch(entry, patch) {  // {{{2
    if (! ('mcast' in patch)) return
  
    delete entry.mcast;
  
    if (! patch.mcast) return;
  
    entry.playback.shard.find(patch.mcast, function(err, resp) {
      entry.mcast = resp;
    });
  }
docs: }}}1 Private {{{1