UI sortables update event not firing when sorting within same div when multiple sortable divs

[ErMasca]

hope the code attached helps my bug description. I have found that when you have a layout made out of divs as "zones" and little divs within "parts". when sorting from zone to zone works just fine, buut when you try to sort within the same div the update event doesnt fire.

$(document).ready(

function () {

var sortableChange = function(e, ui){

if(ui.sender){

var w = ui.element.width(); ui.placeholder.width(w); ui.helper.css("width",ui.element.children().width());

}

};

var sortableUpdate = function(e, ui){

if(ui.sender){

var w = ui.element.width(); ui.placeholder.width(w); ui.helper.css("width",ui.element.children().width());

var zones = $('.part').not(".ui-sortable-helper"); var wp = ; for(var x=0; x<zones.length; x++) {

if(wp.length > 0){wp+='&';}

var pid = $('#'+zones[x].id).parent(".wpzone").attr("id");

wp+=pid+'='+zones[x].id;

}

alert(wp);

}

};

$('.wpzone').sortable({

cursor: 'move', items: $('.part'), handle: $('.titlebar'), opacity:90, zIndex:10000, dropOnEmpty:true, containment:'document',

placeholder:'sortHelper',

helperclass: 'sortHelper',

activeclass :'sortableactive',

hoverclass : 'sortHelper',

appendTo: 'body', tolerance:'intersect',

refreshPositions:true, connectWith: $('.wpzone'),

delay:0, distance:5,

scroll:true, scrollSensitivity:50, revert:true, cursorAt: {top:15,left: 10 }, start: function(e,ui) { ui.helper.css("width", ui.item.width()); },

change: sortableChange,

update:sortableUpdate

});

});

[flesler]

This belongs to jQuery UI. Please repost this to the  UI Bug Tracker.