ConfirmDialog - changed button order and enter does wrong thing...

I just made confirm dialog using ConfirmDialog addon and changed button order following example. So now my delete is on left. And cancel button is on right, has default button style and has focus. But if I press enter things happen as I would have pressed delete.

Now don’t know if this is problem with ConfirmDialog or generally some Vaadin issue.

And it seems that buttons doesn’t matter because if I remove my factory and just use defaults and then change active button with tab, enter will always mark dialog as confirmed.