Game doesn't start

[aco4]

1. Autohost a 1v1 game against a bot. Use cmdinterface and --autohost-not-ready
2. Wait for player join
3. Use stdin command set host ready 1 to make autohost spectator check ready
4. Wait for player to check ready
5. ⚠️ Game doesn't start AND player can't uncheck (related Can't uncheck Ready #4480)

4.6.1