cron: commit roulette txn early for long tasks.

files/helpers/roulette.py

@@ -202,6 +202,9 @@ def spin_roulette_wheel():
             game.active = False
             g.db.add(game)
 
+        # Commit early when dirty because of long-running tasks after roulette
+        g.db.commit()
+
 
 def determine_roulette_winners(number, bets):
     winners = []