--- a/src/cm/media/js/client/c_scopes.js	Wed Mar 12 16:52:58 2014 +0100
+++ b/src/cm/media/js/client/c_scopes.js	Wed Mar 12 17:19:23 2014 +0100
@@ -185,7 +185,7 @@
 // was replaced with :
 // afterStartElt = _yuiCloneNode(startElt) ;
 _yuiCloneNode = function (srcElt) {
-  var ret = CY.Node.getDOMNode(CY.get('#'+srcElt.id).cloneNode(true)) ;
+  var ret = CY.Node.getDOMNode(CY.one('#'+srcElt.id).cloneNode(true)) ;
   ret.id = CY.guid();
   return ret ;
 };