NativeMenuItem causes title bar to be unresponsive until click

[SvenKribitz]

Hello,
so I'm not sure if this belongs here or if there's a fix.
Though if I open "File" for example and close this menu by pressing on the titlebar it closes and the buttons are unresponsive until I click on a button or menu item.

[FrankenApps]

This unfortunately does not seem to fixable at the moment, because there is no event that can be used to detect that the focus has shifted to the non-client area.

[SvenKribitz]

@FrankenApps couldn't you just use a close event for the dropdowns?

[FrankenApps]

@Dultus Well probably yes, but I couldn't get it to fire when clicking the non client area and when the menu closed.
Would gladly accept a PR though.