Integrated: JDK-8090647: Mnemonics : on windows we should cancel the underscore latch when an app loses focus.

[Pedro Duque Vieira]

Hi,

It's been a while (I've been on vacation, etc) but thank you very much for
fixing this issue on such short notice!

Thanks again, kind regards,

-- 
Pedro Duque Vieira - https://www.pixelduke.com