git-repository: describe does not return more recent tag, in case of duplicate tags

[Byron]

If a commit has multiple tags, describe should return the most recent one.

Commands to reproduce:

❯ git tag v2 -m "Testing tags v2"
❯ git tag v0 -m "Testing tags v0" "HEAD~1"
❯ git tag v1 -m "Testing tags v1"
❯ git describe
v1
❯ gix repository commit describe
v2

[Byron]

Sorry, @davidkna, I wasn't aware that changing an issue into a PR via the Github API changes ownership as undesired side-effect. I won't be doing this again and instead just link a new PR to the original issue.

[davidkna]

@Byron I don't mind. Thank you for fixing this!