mysqldump

db-push replaced staging from a dev dump and accounts vanished. Two small dumps and honest guards keep them alive.

TL;DR: Staging users kept vanishing because db-push replaces the whole database with a dev dump that excludes the users table. The fix: dump staging users beforehand, then restore them after the import using --no-data, --complete-insert, and --no-create-info. Key lesson: dump and verify before any DROP, validate injected names, and lock down the hash-bearing file.