anchor.diff:  		if (blockDragged.className.includes("template")) {
   			console.log("cloning...");
   			blockDragged = blockDragged.cloneNode(true);
  +			
   			$(blockDragged).removeClass("template");
  +			$(blockDragged).attr("id", freshIdentifier());
   
   			//Retrieve the space Container in the fresh dragged Block
   			var spaceContainer = blockDragged.childNodes[1];
  
positive.code: 	<aui:fieldset class="fieldset">
  	
  	<input name="<%=renderResponse.getNamespace()%>JSON" id="JSON" type="hidden" value="coucou" />
  		
  	<%-- Scenario Title --%>
  	<legend class="fieldset-legend">
  
negative.code: 	[].forEach.call(cols, function(col) {
  		addDragFeature(col);
  	});
  	
  	var count = parseInt($("#COUNTER").val(), 10);
  	console.log("Initial identifier: " + count);
  	
  	function freshIdentifier(){
  		count++;
  		console.log("Fresh identifier: " + count);
  		return count;
  	}
  
  	function addDragFeature(elt) {
  		elt.addEventListener('dragenter', handleDragEnter, false);
  