binding node property in custom node template

[ramseyfeng]

For example, i have a custom node template like below:

<ul {{options.ulClass}}>
     <li ng-repeat="node in node.{{options.nodeChildren}} | filter:filterExpression:filterComparator {{options.orderBy}}"
         ng-class="headClass(node)"
         {{options.liClass}}
         set-node-to-data>
          {{node.label}}
         <i class="tree-branch-head" ng-class="iBranchClass()" ng-click="selectNodeHead(node)"></i>
         <i class="tree-leaf-head {{options.iLeafClass}}"></i>
         <i>
             <b>
                 <div class="tree-label {{options.labelClass}}" ng-class="[selectedClass(), unselectableClass()]"
                      ng-click="selectNodeLabel(node)" tree-transclude></div>
             </b>
         </i>
         <treeitem ng-show="nodeExpanded()"></treeitem>
     </li>
 </ul>

Here the {{node.label}} binding is not working, how can i make it binding.

I have created a simple plnkr to make it clear:
https://plnkr.co/edit/WdnJhmuZtibU0AyiDU3s?p=preview

I have used angular-tree-control a lot in our project, in some scenarios we want have some dynamic percentage value in front of the node icon. That's why i need the binding here, please kindly help me on this. Thanks!