I'll try to clarify. The `<tag>-g<hash>` string is _not_ the name of the tag, it's a string emitted by `git describe` based on the existence of `<tag>` in the history.

Of course I'm not suggesting that tag names should include the hash. The existence of the tag `v4.11-rc7` allows other commits to have nicer derived names.

EDIT:

Also to your last inquiry, it may be indeed a surprise that Git resolves `<anystring>-g<githash>` to `<githash>`, but some may argue it's a feature, not a bug :)