In that case, I think poppa’s current version of those shots, cutting Chewie from the first scene and recoloring him in his brief second scene, is probably one of the better versions to go with.
I think the hands-on-hips movement Mayhew does in the first scene is a very Chewie-like characteristic, so it would still feel like Chewie even if he was recolored in that scene, imo. And like you said, Hal, we can just infer that another Wookiee general has showed up in between scenes when Yoda gets attacked. It is just so brief that I think a hypothetical new viewer wouldn’t even think twice about it. But his extended appearance and mannerisms in the first scene might make people question it more if he were to be kept there.