Just an observation:
This thread was also about albums with several discs. and if there are several discs, then this should be reflected with separate folders.
If the discnumber is now cut that it only shows 1, 2, 3 etc.
then all albums with just 1 disc could not be separated from albums with more discs as "1" always is "1" and not "1/1" or "1/2".
So I would expect, that all files of album no. 1 are left in the original folder while the others get moved to a subordinate folder labelled ... (Disc 2).
I don't know if this is really intended.