fix EFFECT_DISABLE_FIELD

EFFECT_DISABLE_FIELD has 3 types:
1. The player chooses the location
The script has an operation function but no value function.
The temp value will be set in operation, and it will be reset in card::reset().

2. Certain location related to the card
The script has a value function.
It will not be reset in card::reset().

3. Fixed location
The script sets the value as a constant.
The temp value will be reset in card::reset().

card.cpp

@@ -1899,8 +1899,10 @@ void card::reset(uint32 id, uint32 reset_type) {
 			battled_cards.clear();
 			reset_effect_count();
 			auto pr = field_effect.equal_range(EFFECT_DISABLE_FIELD);
-			for(; pr.first != pr.second; ++pr.first)
-				pr.first->second->value = 0;
+			for(; pr.first != pr.second; ++pr.first){
+				if(!pr.first->second->is_flag(EFFECT_FLAG_FUNC_VALUE))
+					pr.first->second->value = 0;
+			}
 		}
 		if(id & (RESET_TODECK | RESET_TOHAND | RESET_TOGRAVE | RESET_REMOVE | RESET_TEMP_REMOVE
 			| RESET_OVERLAY | RESET_MSCHANGE | RESET_TOFIELD  | RESET_TURN_SET)) {