[fixed/closed]Lord of the Pit-untargetable sympol

[Aswan jaguar]

Describe the Bug:
Lord of the Pit ability to sacrifice another creature puts on upkeep an untargetable symbol which lasts for whole upkeep.So if I want in the same upkeep to target it with Takklemaggot (that happened in my case) trigger I can't.

Which card did behave improperly ?
Lord of the Pit

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2014/12/20: Commanding 2014 Urzas,duel

What exactly should be the correct behavior/interaction ?
Lord of the Pit can't be targeted by it's own ability but can be targeted by other triggers & spells in upkeep.

SAVEGAME CORRUPTED

Are any other cards possibly affected by this bug ?
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[BAgate]

Didn't happen in a clean game.

[Gargaroz]

Well, the code was a bit clumsy, so I've redone it in 8c1369f