code: function (draggedItem, sortable) {
          var ditem = draggedItem;
          if (store(sortable).getConfig('copy') === true) {
              ditem = draggedItem.cloneNode(true);
              addAttribute(ditem, 'aria-copied', 'true');
              draggedItem.parentElement.appendChild(ditem);
              ditem.style.display = 'none';
              ditem.oldDisplay = draggedItem.style.display;
          }
          return ditem;
      }
docs: _getDragging returns the current element to drag or
  a copy of the element.
  Is Copy Active for sortable
  @param {HTMLElement} draggedItem - the item that the user drags
  @param {HTMLElement} sortable a single sortable