Thead and tfoot elements get deleted with deleting content of table in Google Chrome.

On the RadEditor demo page [http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx]

Replace the content with a table with a thead tbody tfoot caption

<table>
   <caption>ABC</caption>
   <thead>
      <tr>
         <th>A</th>
         <th>B</th>
         <th>C</th>
      </tr>
   </thead>
   <tfoot>
      <tr>
         <td>FOOT</td>
         <td>FOOT</td>
         <td>FOOT</td>
      </tr>
   </tfoot>
   <tbody>
      <tr>
         <td>A1</td>
         <td>B1</td>
         <td>C1</td>
      </tr>
      <tr>
         <td>A2</td>
         <td>B2</td>
         <td>C2</td>
      </tr>
      <tr>
         <td>A3</td>
         <td>B3</td>
         <td>C3</td>
      </tr>
   </tbody>
</table>

Select some content across the tbody, tfoot, thead and caption and delete 

Expected results: the content of the TD and TH should be remove

Actual results: the THEAD and TFOOT elements are removed

More details check the attached delete_thead_tfoot.gif file.

Workaround: 
<telerik:RadEditor ID="RadEditor1" runat="server">
</telerik:RadEditor>

<script>
	(function () {
		var $E = Telerik.Web.UI.Editor;
		var utils = $E.Utils;
		var cmdPrototype = $E.DeleteSelectionCommand.prototype;
		var shouldCollectNode = cmdPrototype.shouldCollectNode;
		cmdPrototype.shouldCollectNode = function (node) {
			return shouldCollectNode.call(this, node) && !utils.isTag(node, "thead") && !utils.isTag(node, "tfoot");
		};
	})();
</script>