Crash when closing game while in combat

[shartte]

When the game is closed while in combat, the game crashes in combat_exit.

Apparently the initiative list is never cleaned up when the map is closed and as such it still contains handles for objects that have already been deallocated.

[shartte]

Crash does not happen when quitting to main menu during combat, and then closing the game.

[shartte]

This is related to the order of shutdown for game systems. Vanilla map_close accesses game systems that have already been closed during shutdown. In our case, this causes a crash because the game system has been deleted completely. In vanilla, this worked, since everything is just a static function.