Yes, I admit a wrong wording. It was never my intention to imply that the patch did it, only that it exposed it. As I tried to explain in subsequent posts. My sincere apologies for the misunderstanding.

My tests showed some correlation (note correlation, not causality). Now I tried it again and can confirm that it behaves the same way without the patch. That clears that connection too.

Another thing I found is that once you start the affected app in portrait, it clears the condition. Then you need to start it in landscape twice in a row to get it again. Which may confuse some testers, including me. That suggests to me that it really is in the OS and not in the applications.

EDIT: Leinad found that too and beat me to it.