While this trick works sometimes, unfortunately, it doesn't for this build (at least for my device). Xcode tries to use the duplicated symbols, but when performing an install action on-device, it fails and then tries to download the symbols fresh. Edit: Scratch that, after a macOS restart, builds are now installing properly.

Thanks for getting this fixed! I will say that this has happened quite a few times now, and some of those times took weeks to fix (or were fixed simply by waiting for a new build) and I couldn't debug on-device. It would be wonderful if there was an improvement to the iOS/watchOS build deployment process such that symbol uploads are verified at deployment time.

Unfortunately, this isn't true for me. It just happened on devices that went from iOS 16.6.1 -> 17.0 RC & watchOS 9.6.2 -> 10.0 RC.