Android system after the launch, PackageManagerService inside the constructor to non - FBE (not file encryption, namely full encryption) type of device on a migrated
https://android.googlesource.com/platform/frameworks/base/+/cd824ef%5E%21/
https://android.googlesource.com/platform/frameworks/native/+/cc6281c%5E%21/

But the user does not have this operation,

This will make the system after the upgrade, users because of the change of the FingerPrint, need after MigrateAppdata, data loss, does anyone know about this?