Populate used to attach a new Swiss-service tournament to whatever it was
pointed at, which switched a game-run tournament to the other engine, and
registered bots with no profile that real players were then paired against.
Population is refused once a real player has registered or the tournament
has left draft, and simulation while any real player is entered, unless a
superadmin ticks an explicit test override. Game-run test tournaments are
simulated natively: start through the game, then results drawn from the
bots' ratings are recorded through the game's arbiter endpoint and the
engine pairs the next round itself. bot_metadata is stored as jsonb, not a
JSON string.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>