I wasn't sure which forum would be correct, so I posted my question in a different thread and I'm just putting a pointer to that thread in this second forum.
https://forums.macrumors.com/showthread.php?p=4837060
(This isn't creating 2 threads on the same question in 2 different forums, so I hope this is okay with the forum rules.)
https://forums.macrumors.com/showthread.php?p=4837060
(This isn't creating 2 threads on the same question in 2 different forums, so I hope this is okay with the forum rules.)