setClickShortcut doesn't work after upgrading to 6.8.4

I have a form with a button with setClickShortcut(KeyCode.ENTER). Every time I press enter in any field of the Form, the buttonClick event is triggered.
After upgrading from 6.7.8 to 6.8.4, shortcut on button doesn’t work any more. Is this a known bug?
Thank you, Francesco

I think this is a known bug that seems to work again under 6.8.5 nightly.