when i enter fullscreen and exit on ios then throw a exception app exited

First throw call stack:
(
0 CoreFoundation 0x000000010d61b6fb __exceptionPreprocess + 331
1 libobjc.A.dylib 0x000000010c4d4ac5 objc_exception_throw + 48
2 CoreFoundation 0x000000010d61b555 +[NSException raise:format:] + 197
3 UIKitCore 0x000000011799e647 -[UIViewController __supportedInterfaceOrientations] + 921
4 UIKitCore 0x000000011798dee5 -[UIViewController _preferredInterfaceOrientationGivenStatusBarAndDeviceAndOrientation:] + 90
5 UIKitCore 0x0000000117fc2851 -[UIWindow _updateToInterfaceOrientation:duration:force:] + 407
6 CoreFoundation 0x000000010d55d5ec __CFNOTIFICATIONCENTER_IS_<…>

Start by reproducing the fullscreen-to-exit flow on iOS and inspect the UIKit orientation exception shown in the issue's call stack. Trace Chewie's fullscreen and orientation-handling entry points, then verify that exiting fullscreen no longer terminates the app; the payload does not name a file or test to run.

Written by the indexing model from the issue text.