Season 2 finale what if

Hi my gf and I just watched traitors season 2 final. When there is the last 4 it's Jaz, Harry, Andrew and Molly. Molly and Harry voted Andrew, Andrew voted for Harry and Jaz as the undecided vote also goes for Andrew.

My what if is this. What if Jaz completely backed Andrew and voted for Harry. I guess Claudia would ask them to vote again. In the case it was a 2 vs 2 split how would it be decided