Description

Images may be present in the local image cache without having been pushed and/or tagged ("dangling").

The new code unconditionally includes RepoDigests and RepoTags;

But also assumes an image always has a single tag (which may not be the case, e.g. ubuntu:latest and ubuntu:22.04 may be the same image).

The old code accounts for this situation, and (for backward compatibility) returns <none>:<none> as name/tag;