[Annorax]

All action on the turn gets undone, the turn card is set aside (not mucked), the dealer burns and turns again so that what would have been the river card is now the turn card, then the turn card is shuffled back into the stub while the turn action is completed. When the turn action is completed, the dealer puts up the river card without burning a card. Proceed as normal.

Alternatively, kick the dealer in the nuts, then do all of this.