Dialog Options - Creating Buttons also creates an extra button.

[GoogleCodeExporter]

What steps will reproduce the problem?

1.("#dialog").as(Ui).dialog(Dialog.Options.create().
                        .buttons(Buttons.create()
                        .define("Create", new Function(){
                            @Override
                            public void f(){})));
or

2.("#dialog").as(Ui).dialog(Dialog.Options.create().
                        .buttons(Buttons.create()));

What is the expected output? What do you see instead?

Buttons section of dialog has a small, empty button created in front of all 
buttons I define. If no buttons are defined, it will just create the empty 
button.

What version of the product are you using? On what operating system?

gwtquery-ui r146, OSX Lion, Chrome Browser

Please provide any additional information below.

Original issue reported on code.google.com by ryanlw...@gmail.com on 19 Jan 2012 at 7:36