Nova reports instance active during shelving_image_pending_upload

When shelving an instance, there is a point where the instance still appears ACTIVE but is already shutdown in libvirt. Task state is shelving_image_pending_upload (could be shelving_image_uploading and shelving as well).

Should Nova report a different state so the user is not confused? (instance appears active but actually is already down and unreachable)

This was reproduced on Ussuri.