Container Registry: Deleting a Docker Image tag removes all tags associated with the same Docker Image

Summary

Deleting a Docker Image tag removes all tags associated with the same Docker Image

Steps to reproduce

1. Push multiple tags for the same Docker Image.
2. Delete one tag.
3. Observe that all tags are deleted.

What is the current bug behavior?

Deleting all tags associated with Docker Image.

What is the expected correct behavior?

Only one tag should be deleted, if there are more tags referencing the same Docker Image. If it is the last tag for the given Docker Image, delete the files of the Docker Image as well.