i have two image : localhost:5000/my-ubuntu:test1 localhost:5000/my-ubuntu:latest
they have the same digest: sha256:93b34b7632eed4e9909cf7a140e162cdf1bbd984aef49b24cb1f7e0d6e2d67d0

i see that i can't delete manifest by tag in api v2 .what should i do to delete one of the tag .