[bug in ie]: Nested sortable divs can't be dragged correctly

[lingyulin]

Nested sortable divs can't be dragged correctly in ie,the parent sortable div will move when dragging children sortable divs,source as follow: <script>

$(function() {

$( "#parent" ).sortable(); $( "#parent" ).disableSelection(); $( "#child" ).sortable(); $( "#child" ).disableSelection();

}); </script>

<div id="parent"> <div id="child">

<div class="ui-state-default"><span class="ui-icon ui-icon-arrowthick-2-n-s"></span>Child Item 1</div> <div class="ui-state-default"><span class="ui-icon ui-icon-arrowthick-2-n-s"></span>Child Item 2</div> <div class="ui-state-default"><span class="ui-icon ui-icon-arrowthick-2-n-s"></span>Child Item 3</div>

</div> <div class="ui-state-default"><span class="ui-icon ui-icon-arrowthick-2-n-s"></span>Parent Item 2</div> <div class="ui-state-default"><span class="ui-icon ui-icon-arrowthick-2-n-s"></span>Parent Item 3</div> </div>

[scott.gonzalez]

Fixed with #4333.