title: Kendo UI DropDownList Filter Not Filtering
body: <p>I type in the filter "chef", the filter is applied and I select any item. I re-opened the dropdown and typed the same filter again no request is made. Am I missing something ? (the same issue happen with client filtering)</p>
  
  <p>URL : <a href="http://demos.telerik.com/kendo-ui/dropdownlist/serverfiltering" rel="nofollow">http://demos.telerik.com/kendo-ui/dropdownlist/serverfiltering</a></p>