For those recommending a late breakfast and staying over for lunch, though I've read of a few doing this over the years, we've never had that experience. We've had a last seating of breakfast a few times and been close to the last ones there before the lunch wave started. At least one time they had lunch items on one half of the buffet, but all of the dishes were covered and there were no serving utensils put out.
So I would just caution anyone planning on sampling from both to not count on it.