Collectible Card Game Headquarters

Describe the Bug:
Nissa Revane's ultimate can't be stopped until you select all elves in your library.

Which card did behave improperly ?
Nissa Revane

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 ?
You can select any number of elves from your library, from 0 to as many as there are.

Are any other cards possibly affected by this bug ?
-

In fact even if you select all elves you have in the library it will still ask you for more.
Only way out close program from task manager.

Fixed in 16fce51