It is just that in these same set there is one of Marco buying something from Gold. And we know that Ep 20 is about Pinocchio and the date that they were filming was during the time they we have a lot of other photos from Ep 20.
Here is a link to the rest of the photos from this day.
I know something must happen in Ep 19 that makes them be on better speaking terms. Especially then the promo suggests where it looks like someone is trying to kill Gold and we see August with the knife. I don’t know. We will see in a few weeks.