MapKit: Change in Behaviour of addOverlay on iOS 16 / Xcode 14.0

Just after I have published my latest app project „Muvy“, a very nice tracking app for all outdoor activities, Apple released iOS 16 and Xcode 14.0. With big horror I had to notice that my app was not working properly with the new version of the operating system. All non-Apple maps were covering my tracks so that they were not visible anymore. What a pity. It turns out that Apple changed the behaviour of the quite central method addOverlay without notice.