Printing Mistake

[danielle dassero]

I am going through yet another endless reread of all the HP books, and I am reading my British copy of POA and noticed this mistake 'A History of Magic, by Adalbert Waffling".  I checked PS/ST and it says Waffling did Magical Theory, doublechecked my POA American Edition, and it says History of Magic by Bathilda Bagshot. I just found this funny, because my British edition is a later edition, I know this because my British PS, says FLint is a 5th yr instead of a 6th yr. Does anyone else have a POA American or British edition with the same mistake as mine in it??? Has anyone mentioned this mistake before?
Danielle