Resize grabber no longer showing on dialogs after 1.10.3 update

Resize grabber no longer showing on dialogs after 1.10.3 update

Updated to jQuery UI 1.10.3 (custom theme) and find that my resizable dialogs no longer show the resize grabber in the lower right (SE) corner. The offending code may be the following css in jQuery-ui-1.10.3.css

.ui-dialog .ui-resizable-se {
    width: 12px;
    height: 12px;
    right: -5px;
    bottom: -5px;
    background-position: 16px 16px;
}

if the right, bottom, and background-position rules are removed I see a grabber again.

While I am not sure that the API documentation site ever showed the resize grabbers, I find the exact same behavior with the dialogs at  http://jqueryui.com/dialog/

Is this a bug or was there an intentional change I need to modify my existing code to be aware of?

Thanks