title: QTreeWidgetItem issue: Items set using setWidgetItem are dispearring after moving
body: <p>I have a bunch of QTreeWidgetItems that have embedded widgets in them that i set using the setItemWidget() function in the QTreeWidgetItem class. </p>
  
  <p>Problem is anytime I move QTreeWidgetItem using drag/drop or any other means the embedded widget I set before disappears.  I've seen around various forums that others have had this same problem (see link below)</p>
  
  <p><a href="http://www.qtcentre.org/threads/40500-QTreeWidget-setItemWidget%28%29-item-disappears-after-moving-item" rel="nofollow">http://www.qtcentre.org/threads/40500-QTreeWidget-setItemWidget%28%29-item-disappears-after-moving-item</a></p>
  
  <p>Any possible solutions?</p>