WTF. I'm fairly certain that would be illegal in my state.
The trick for the builder is that THEY are the owner until final paper sign - so anything above final pre purchase inspection is not something they have to allow.
Which is why you don’t use them, or go in expecting shiny crap.
Scumbags.
You’ll probably lose, but you’ll harm their bottom line, and if everyone reliably did it they’d be out of business.
Last I heard they were being sued over that community at least.