The agent for the author is still claiming her client was in a concentration camp for real; it was just the love story about the girl who threw him apples and bread over the fence part that was made up.
Did no one pay attention to the pictures of concentration camps when they were in school? No freaking way did anything get tossed over those fences. And, indeed, this detail was part of the hang-up.
Again, caught during the pre-publication publicity, so that's an improvement, but one does wonder at what point Oprah gets better service on the fact-checking.