Collectible Card Game Headquarters

Describe the Bug:
AI cast Flesh Allergy sacrificed Gray Merchant of Asphodel and destroyed my Molder Slug.I only lost 1 life instead of 2.It seems it doesn't count the destroyed creature.

Which card did behave improperly ?
Flesh Allergy

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2016/01/15: Battle For Zendikar v2,duel

What exactly should be the correct behavior/interaction ?
Ruling
1/1/2011 Flesh Allergy counts each creature put into a graveyard from the battlefield that turn, including token creatures, the creature sacrificed to cast the spell, and the targeted creature (if it is destroyed).

Are any other cards possibly affected by this bug ?
-

Most likely, Flesh Allergy finishes resolving before the regeneration step is run. I remember fixing another card sort-of-recently with the same problem.

Fixed in commit aaff74c.