This seems like an error in the jQuery user interface source. Calling destroy in the parent container removes the ui-resizable-handle from the container target and all contained elements.
destroy jquery.ui.resizable.js 198 ( JQuery UI v1.8.20).
, :
.find('.ui-resizable-handle').remove();
:
.children('.ui-resizable-handle').remove();
ui-resizable-handle div.
, !