94ec80d21c
The issue there was that number of layers did not include normals, while element size counts bytes used by normals. This sounds very fragile and dangerous to work further. Also, one value can easily be delivered from another, so it is redundancy going on here. Possible difference now is that multires subdivision will copy normals to a higher levels. Shouldn't be big of a problem, since leaving old normals and updating coordinates is not correct either.