"Sobek's Return" Bug

So im a lvl 39 and finished all the ao1 quests so i was starting the ao2 ones... i completed a few and then i got to sobek's return quest and decided to go back to ao1 for a while, but i had already accepted the quest for later. Playing ao1 i got to the sobek part of it and defeated him but for some reason it said that i completed my quest EVEN THOUGH i was at ao1 and not ao2 defeating him. I promptly turned my ao2 quest (that was somehow done in ao1) into the mummy npc, accepted the cash reward, and accepted the next quest... ;)... so has anyone else encountered this problem and any thoughts from devs?

There are a few other quests like that.

so its normal?