[mdv] template.ref must recursive to find the original source template

pkg/mdv/lib/src/template.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of mdv;
 
 /** Extensions to [Element]s that behave as templates. */
 class _TemplateExtension extends _ElementExtension {
   var _model;
   _TemplateIterator _templateIterator;
@@ skipping 37 matching lines @@
   }
 
   /**
    * Creates an instance of the template.
    */
   DocumentFragment createInstance(model, String syntax) {
     var template = node.ref;
     if (template == null) template = node;
 
     var instance = _createDeepCloneAndDecorateTemplates(
-        template.content, syntax);
+        template.ref.content, syntax);
 
     if (_instanceCreated != null) _instanceCreated.add(instance);
 
     _addBindings(instance, model, TemplateElement.syntax[syntax]);
     _addTemplateInstanceRecord(instance, model);
     return instance;
   }
 
   /**
    * The data model which is inherited through the tree.
    */
   get model => _model;
 
   void set model(value) {
     var syntax = TemplateElement.syntax[node.attributes['syntax']];
     _model = value;
     _addBindings(node, model, syntax);
   }
 }