[fixed/closed]Dream Halls exiles discarded card

[Nexhro]

Describe the Bug:
When Dream Halls is on the battlefield and a player casts a spell by discarding a card that shares a color with said spell, the discarded card is exiled.

Which card did behave improperly ?
Dream Halls

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
JOU v1, duel

What exactly should be the correct behavior/interaction ?
When Dream Halls is on the battlefield and a player casts a spell by discarding a card that shares a color with said spell, the discarded card is put into its owner's graveyard.

Are any other cards possibly affected by this bug ?
-

Last report can be found here.

[Gargaroz]

Fixed in ec5aa8e

[Nexhro]

As of CoRM15 mini1, the discarded card is put into its owner's graveyard as intended.