Description

testSplitView keeps failing locally. This is how it looks like on iOS 12 vs iOS 15:

I'm also getting literally endless errors in the console in iOS 12 on the split view:

Sentry - debug:: Failed to get pthread handle for mach thread 5123
Sentry - error:: thread_suspend(handle_) failed with kern return code: 268435459, description: Unknown error.

The exact same thing runs fine from iOS 13 and up though, without these errors.

This test failure might have started with #1978? When looking at test failures in master that might be the case.