Copy and link cards preserving checklist state

gistfile1.txt

function copyAndLinkCardsPreservingChecklistState(notification)
{
  var added = new Notification(notification).addedCard("A");
  var copy = added.copyToList(
               Board.findOrCreate("B").findOrCreateList("A faire"),
               "top"
             );
             
  added
  .attachLink(
    copy
    .attachLink(added.link())
    .link()
  );
  
  added.checklists().each(function(cl)
  {
    cl.items().each(function(item)
    {
      if(item.isComplete())
      {
        copy.checklist(cl.name()).item(item.name()).markComplete();
      }
    });
  });
}