[2022] [Beta] Slightly broken Cloak strategy

Originally posted by AgentSte: When playing with Diplomacy, I have found that you can use Cloak to Infiltrate a city which you are currently sieging but have not yet claimed. This means that, by sitting on the city and sieging it indefinitely, one can spend every turn creating Cloaks on a nearby city, moving them over to the city under siege and turning them into 3 daggers.

Since daggers are independent (do not contribute to a city's population cap), this means that you can create an unlimited number of daggers to fill the map and swarm the enemy.

I really like the Cloak and Dagger units, but this seems to exploit a loophole in the mechanic in a way which is not faithful to the intended design. I'd suggest not being able to Infiltrate when sieging a city and/or not being able to Infiltrate the same city more than once

This is a bug, and we plan to fix it. :)