Nostalrius Begins - Quality wow vanilla realm (1.12)

The mob is supposed to be pickpocketed for the rogue lvl 10 quest Destiny Calls.
The loot table does not reset properbly after he is pickpocketed, only if he is killed.
As he spawn 8-10 adds when engaged, he is impossible to kill for a lvl 10 rogue.
Currently waiting for about 20 hours to continue my quest, please fix!