It was an interm measure for the armv7 -> arm64 transition, where they used it to convert armv7 binaries to a wacky 32-bit version of arm64. It was also used f

It was an interm measure for the armv7 -> arm64 transition, where they used it to convert armv7 binaries to a wacky 32-bit version of arm64. It was also used for a few misguided things over the years, like force-enabling Swift Concurrency backdeployment for apps submitted to the app store, which mostly just introduced bugs that only happened on app store/test flight installs for zero benefit.