] ZK WPD ERROR , Object doesn't support property or method 'apply' in 7.0.8

http://zkfiddle.org/sample/hne4jr/7-Another-new-ZK-fiddle

Please Check above URL in Ie. Go to Internet Explorer 11. Then go to tools>internet option>advanced tab>enable script debugging.Then run above fiddle.
When I am trying to drag a non-drag gable list item in list box its showing that Object doesn't support property or method 'apply', File: zk.wpd, Line: 9, Column: 54118. There is only showing error in ZK.WPD file which is internal JS of ZK. in version 7.0.5.1 the error is not showing. But in 7.0.8 its showing. That is a script error . when i debug this using IE-11 developer tool the error is showing like Object doesn't support property or method 'apply', in line 9.

Also if any textbox remains inside a listitem and same issue is coming when selecting the text of textbox using mouse.