Here’s how I think this change would work:

After the dancer gets eaten by the Rancor, the band begins to play and the first shot of Boushh is when she’s face-to-face with C-3PO. She dismisses Bib Fortuna and says to the robot something like ‘It was us, who captured the wookiee’. This uses audio from the negotiation scene (which has been completely cut), and carries over to the next shot of Boba Fett nodding. Chewie is cut from the scene entirely, of course, and the final shot is of Lando, which cuts before he pulls the face mask down. Cue frog outside the palace.