Collectible Card Game Headquarters

Describe the Bug:
Kiln Fiend triggers off copies of spells put on stack via Mirari.

Which card did behave improperly ?
Kiln Fiend

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
JOU, duel

What exactly should be the correct behavior/interaction ?
Kiln Fiend doesn't trigger off copies.

Are any other cards possibly affected by this bug ?
Also tested Guttersnipe -> same bug.
Might also occur in conjunction with other cards that create copies of instants/sorceries, like for example Mirror Sheen, Nivix Guildmage, Echo Mage, Sigil Tracer, and/or Meletis Charlatan.
Likely also applies to similiar creatures like Nivix Cyclops or Wee Dragonauts.

Fixed. It wasn't used the 'specific_spell_played' functions, which takes care of all the illegal cases like copied spells.

Working fine now.