@Override
        public Permission putIfAbsent(String key, Permission value) {
            Permission ret = super.putIfAbsent(key, value);
            invalidate(this.op);
            return ret;
        }
Queries whether a given permission should be granted by default.

@param permission the permission to query
@param isOp if the player is op
@return a tristate result
nukkit/src/main/java/me/lucko/luckperms/nukkit/inject/server/LuckPermsDefaultsMap.java