Nightly builds will move a rolling `nightly` tag across main. A plain
`git describe --tags` returns whichever tag is nearest, so once that tag exists
every build — including a real release build — would report its version as
"nightly" and lose the release lineage entirely.
Restrict discovery to `v*` so the rolling tag is invisible to versioning:
with a nightly tag ahead of v0.3.1
git describe --tags → nightly
git describe --tags --match 'v*' → v0.3.1-1-gf940087
Land this before the nightly workflow exists, so no build is ever stamped from
the rolling tag.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
mirivlad
mirivlad