My employer uses tags for versioning builds.

git push && git push — tags
I’m guessing this is standard practice, but we’ve been running into an issue with our build server — Atlassian’s Bamboo — picking up commits without their tags. The reason was obvious: we’ve been using git push && git push — tags, pushing tags after the commits, and Bamboo doesn’t trigger builds on tags, only on commits. This means that every build would be versioned with the previous version’s tag!