Nine_high
3 of a Kind
RRoP Section 5 Rule 8 said:
A dealing error for the fourth boardcard is rectified in a manner to least influence the identity of the boardcards that would have been used without the error. The dealer burns and deals what would have been the fifth card in the fourth card’s place. After this round of betting, the dealer reshuffles the deck, including the card that was taken out of play, but not including the burncards or discards. The dealer then cuts the deck and deals the final card without burning a card.
I use this method, and I don't see myself changing any time soon.
I don't think a premature turn card "deserves" two chances to come off, and certainly not at the expense of the original river card.
I wouldn't hate burning and placing the original river facedown, shuffling the premature turn back in and turning again. But that's messy, has it's own issues, and also I've never seen it done or prescribed. I don't do this.