Button: timeout in formResetHandler causing refresh to be called on non-widgets

Why is there a timeout into the formResetHandler function, it causes me a lot of trouble after the upgrade of jQuery to version 1.9.1 ?

The formResetHandler function from jquery-ui 1.10.2:

formResetHandler = function() {
	var buttons = $( this ).find( ":ui-button" );
	setTimeout(function() {
		buttons.button( "refresh" );
	}, 1 );

My use case was to

1. call the reset method on a form that contains buttons and buttonsets

2. remove some part of that form that contains those buttons and buttonsets (so removing the buttons)

3. Because the execution order isn't guaranted due to the setTimeout, I was getting the error: ''cannot call methods on button prior to initialization; attempted to call method refresh'' because the button is removed before the form.reset.

I'm wondering if the setTimeout is useful.

See the test case at http://jsfiddle.net/krampstudio/FaFby/1/

Thank you!