XML: Crafting Progress (or lack thereof) in custom CraftingPhaseStagingSuperInteraction

I think I got it to work now -- FINALLY -- with the staging cloned from violin_WriteSong_Staging (plus your latest find about adding in the Book_Homework_Active mixer interaction) instead of the computer one. That deals with the progress and updates differently. I only did a quick test but the book progress survived both exiting to the neighbourhood and exiting / reloading the game.

Phew! Thank you, again =)