Weapon endow removal updated

- Now weapon endow effects will no longer be removed when unequipping / changing a shield (bugreport:1490)
- Now weapon endow effects will be removed when dual wielding and unequipping / changing one of the two weapons

src/map/pc.c

@@ -9413,8 +9413,8 @@ bool pc_unequipitem(struct map_session_data *sd,int n,int flag) {
 
 	clif_unequipitemack(sd,n,sd->status.inventory[n].equip,1);
 
-	if((sd->status.inventory[n].equip & EQP_ARMS) &&
-		sd->weapontype1 == 0 && sd->weapontype2 == 0 && (!sd->sc.data[SC_SEVENWIND] || sd->sc.data[SC_ASPERSIO])) //Check for seven wind (but not level seven!)
+	if((sd->status.inventory[n].equip & EQP_ARMS) && sd->inventory_data[n]->type == IT_WEAPON && //On weapon change (right and left hand)
+		(!sd->sc.data[SC_SEVENWIND] || sd->sc.data[SC_ASPERSIO])) //Check for seven wind (but not level seven!)
 		skill_enchant_elemental_end(&sd->bl,SC_NONE);
 
 	if(sd->status.inventory[n].equip & EQP_ARMOR) {