Map crash with the item_avail

Originally posted by [b]oyangks[/b]
http://www.eathena.ws/board/index.php?autocom=bugtracker&showbug=2604

OK,when we set this option on
// Item check? (Note 1)
// On map change it will check for items not tagged as "available" and
// auto-delete them from inventory/cart.
// NOTE: An item is not available if it was not loaded from the item_db or you
// specify it as unavailable in db/item_avail.txt
item_check: yes

then we have some equipments marked as 0 in item_avail.txt
eg. 2357,0

if we have it equiped on and log out, but when we log in again,the problem appears, the map will crash.