@meaton, we re-tested and found that the issue is indeed fixed in iOS 15.4. thank you!

I opened this feedback ID a month ago, but no reply on it yet. 9954367

Our app is being impacted by this bug. Is there a fix timeline yet ? For our app, we can't use the workaround you suggest. FYI, this report may indicate that the bug impacts 12.2 and 12.3.1: https://developer.apple.com/forums/thread/116978