Clicking sub-element in draggable handle does not blur active element

I am not entirely sure why the draggable was modified in 1.11 to blur the active element when clicking it, but when a sub-element within the handle is clicked, it does not blur the active element; which, I am assuming is what is desired. In any case, in the _blurActiveElement function of the draggable widget, shouldn't the this.handleElement.is( event.target ) statement actually be this.handleElement.has( event.target )

Thanks,

Ken