I am wondering how much of that was fueled by the perception in June that things were getting better in a COVID sense.
I also think this is a pretty standard pattern as the market incorporates all this info. We started looking to buy our first house in 2008 and the market was similarly weird. Buyers pulled back anticipating declines, sellers came off the sidelines to see if they could get out while prices were still high. Since a lot of the sellers had flexibility, the completed sales were based on people buying who were LESS price sensitive than before.
Now if there is going to be a big correction, sellers who have to sell will start to take lower prices and things will start dropping, like they did for houses in 2008-2009. But maybe there is enough demand and sales keep up and prices stay about where they have been.