draggable droppable ignore change scope

when i change (on drop) scope of droppable element it still accept draggable elements with other scope

examle:

$(".ui-draggable").draggable({

revert: 'invalid',

scope: 'enable',

});

$(".ui-droppable").droppable({

accept: '.ui-draggable',

scope: 'enable',

drop: function(event, ui) {

$(this).draggable('option', 'scope', 'disable');

},

});