BACKENDS: iOS - rotation doesn't catch up when switching apps.
Simply put, if you are in portrait mode, then switch out of the app to some other app, and rotate your screen to landscape, and then go back, the game image will be stretched in the wrong way (i.e. the aspect will be reversed). Flipping the phone back and forth between landscape/portrait again while in app will correct the aspect.
This was all tested on an iPhone 6S, using a build I made myself of a quite recent git-checkout (built the various dependency libraries myself to see how that is done).
Ticket imported from: bugs/7137.