Siege Bug

[Le Ricain]

Playing the two player GC as the allies. When defending a siege there is a bug which causes a CTD.

When the siege screen opens the AI takes some time to decide whether or not to delay the siege. However, an impatient player can assume that the AI is waiting on a response from him. If he moves his unit to the front line and hits the engage button, the battle is resolved in favour of the AI and the game crashes.

The engage button should be disabled until the AI has decided what it wants to do.