Collectible Card Game Headquarters

Describe the Bug:
Butcher of Malakir- AI can probably sacrifice the same creature the was dealt lethal combat damage to Butcher of Malakir death triggered ability (or no sacrifice at all) at least when opponent has Butcher of Malakir.

Which card did behave improperly?
Butcher of Malakir - AI

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction?
AI can't sacrifice to Butcher of Malakir 's ability a creature dealt lethal damage.

Are any other cards possibly affected by this bug?
-

Also when that happen, on the 1st sac effect the player can choose the same target twice if more than 1 Butcher of Malakir are on the bf in both side

Original bug seems fixed by commit 297b19a7. Still wrong for more than 1 Butcher of Malakir.

Reverted commit 297b19a7 as it caused too many bugs by commit d679405.