Negotiation Modifier CanPlayCard Passes Game Engine Instead Of Negotiation Engine

1. Create a modifier that has the CanPlayCard function. This is the modifier I used.

NO_PLAY_FROM_HAND = {
        loc_strings = {
            CANT_PLAY = "Can't play cards from hand",
        },
        hidden = true,
        CanPlayCard = function( self, source, engine, target )

            if engine:GetHandDeck():HasCard(source) then
                return false, (self.def or self):GetLocalizedString("CANT_PLAY")
            end

            return true
        end,
    },

As you can see, it's such a terrible modifier that no one wants.

2. Create this modifier in a negotiation.

3. Game crashes.