Did Schön renumber Myanmar in the 47th edition?

https://en.numista.com/catalogue/pieces9185.html

This page says Schön# 6, but it is Schön# 112 in my 46th edition?

And if you need to open your book to check, do they still say that the 1965 coin is a different metal? Schön# 112 (1952-1956) is Bro3, but Schön# 112a (1965) is Bro1.