All decks locked, can't play since update

[anon43486798]

Known with workaround:

@Kerfluffle-11372

• (NEW) A bug where players can be locked out from creating or deleting decks when they previously were not.
  • If you find yourself in this game state, the current workaround to unlock creating and deleting decks is to win 1 game against Demon Hunter in practice mode (Solo Adventures > Practice).