22880 rep with Argent Dawn - Neutral to Revered in less than 5 min !

I was doing some quests in Eastern Plaguelands, and I got the quest "Argent Call: The Trial of the Crypt". It is supposed to give you 500 reputation with Argent Crusade, but when I completed it, I got 22880 rep with Argent Dawn, it brings me from neutral to Revered with the Argent Dawn, for this short quest.



Excuse me for my spelling mistakes and the French UI of WoW

Seems working as intented as WoWHead say that the spell Trial of the Crypt: Set Argent Dawn Faction To Min Revered will be cast on you...