Replace SAVEPOINT + IntegrityError fallback in resolve_tag with
postgres INSERT ... ON CONFLICT (slug) DO NOTHING + re-SELECT.
Postgres serializes on the unique index, so concurrent inserts of
the same slug no longer race on lookup→insert and the second caller
no longer raises uq_tags_slug. Mirrors the on_conflict pattern
already used for SceneTag/MovieTag inserts.
Goon — self-hosted aggregator for adult-content scene metadata.
Indexes scenes from TPDB, StashDB, and 30+ public adult tube sites.
Cross-source deduplication via perceptual hash + Levenshtein distance.
FastAPI backend + APScheduler worker + React Native (Expo) mobile client.
FOSS, ad-free, donation-funded. See README for details.