Modal Dialog display behind Overlay when using .parent().appendTo();

Since jQueryUI 1.10.0 I'm having an issue with Modal Dialog.

When I call them they got behind the overlay.

A similar bug was reported and fixed on 1.10.1 but with the code structure I need to use in my asp.net project, the bug still persists.

To run correctly with asp.net i need the following structure

$( "<div>" ).dialog({
    modal: true
}).parent().appendTo("#wrapper");

I've tested this issue on Internet Explorer 9 and Google Chrome 24.0.1312.57 m.

I'm an asp.net c# developer and first noticed this issue in my current project.

A reduced test case can be found at: http://jsfiddle.net/Topolino/VwWZY/