Grievances problem in partial multiplayer with bots

[Feofilakt]

Hello!
Me and friend play with bots and see a problem: if any of us declare war on other, 100/150 grievances will stay with him forever and all bots will hate him until the game's end.
I'm trying to solve it somehow:

• searched in DB for "decay Grievances at war", it seems that condition is hardcoded
• searched for lua functions to change Grievances - no success
• have attempted to modify DLL, but game begins crash - I guess, there is checksum somewhere, maybe for license protection

I will be greatly appreciate for any help.