Thank you for bringing this issue to our attention. We've tested it and are confirming the issue is reproducible.
You can follow the PITS Issue by its ID: 12744
Public Url: http://www.telerik.com/support/pits.aspx#/public/aspnet-ajax/12744
As a small token of gratitude I have added 500 Telerik points to your account.
All the best,
the Telerik team
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