Yup, it's true! And! "Judiciary Committee Chairman Chuck Grassley, who said Ford is still invited to speak to the committee, countered that "nothing the FBI or any other investigator does would have any bearing on what Dr. Ford tells the committee, so there is no reason for any further delay.”
http://www.foxnews.com/politics/2018/09/19/kavanaugh-accuser-christine-blasey-ford-demands-full-investigation-by-fbi-before-testifying-in-letter-from-her-lawyers.html (←Story with video)
"a federal law enforcement official told Fox News, "It's totally inappropriate for someone to demand we use law enforcement resources to investigate a 35-year-old allegation when she won't go under oath and can't remember key details including when or where it happened."