Collectible Card Game Headquarters

Describe the Bug:
When a creature enchanted with Funeral March dies,the latter triggers correctly but you can choose to sacrifice a creature that already has been dealt lethal damage not the enchanted creature itself though as it gets a can't-be-targeted symbol.

Which card did behave improperly ?
Funeral March

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 ?
Funeral March doesn't let you sac a creature dealt lethal damage.

Are any other cards possibly affected by this bug ?
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Fixed in commit 297b19a7. Korath please check this commit when you are back to see if I caused other bugs. In my limited tests it seems fine.

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