v1.05 (issue): Fort shows up on map and can be occupied before built

[MarkShot]

A fort shows up on the map and can be occupied before construction is complete. I don't know how the game implements it. Meaning if the enemy arrives in the region before construction is complete, then does the army you put inside still benefit from the fort.

[Pocus]

the code check if the fort is complete for the combat bonuses, but you can occupy it from day 1 (this was simpler to do like that)