Windows: Pressing down two or more mouse buttons over a widget, moving mouse outside application, and releasing the buttons one by one, only the first released button generates release event

Pressing down two or more mouse buttons over a widget, moving mouse outside application, and releasing the buttons one by one, only the first released button generates release event and the widget gets leave after first released button.

This is a regression from Qt4, where all buttons generate release events and widget gets leave after last button is released.

This is probably caused by a bug in autocapture handling.