QTest mouseClick away from QMenuBar does not close QMenu

After a menubar item is clicked and the submenu appears, clicking outside the menu with QTest.mouseClick does not close the menu.

The tests use pytest-qt, which have nothing more than a wrapper around PySide6's QtTest.QTest mouse action functions.

I've attached source code and a gif of the problem. I've also opened an issue on pytest-qt's issue tracker:

pytest-qt Issue 430