short_weapon_damage_return behavior on safety wall and shield auto guard

[deitalk]

Hey, I know it is an offical behavior (reflecting damage even if the attack misses on these skills), but I'd like to know how to change items which apply short_weapon_damage_return in order to not apply damage reflect upon ATK_MISS anymore.

battle.cpp line 6891:

Spoiler

if ( (skill_get_inf2(skill_id)&INF2_TRAP || !status_reflect) && sd && sd->bonus.short_weapon_damage_return ) {
            rdamage += damage * sd->bonus.short_weapon_damage_return / 100;
            rdamage = i64max(rdamage,1);

Can anyone help me? Thanks.