[cubing.js issue] Picture cubes need supercube states

[lgarron]

Steps to reproduce the issue

Watch https://experiments.cubing.net/cubing.js/twisty/mkbhd.html

Observed behaviour

Unexpected center sticker twisting.

🖼 Screenshots

No response

Expected behaviour

No unexpected center sticker twisting.

Environment

Chrome stable.

Additional info

No response

[rokicki]

This is confirmed, and also happens on http://cubing.localhost:3333/experiments.cubing.net/cubing.js/twisty/supercube-arrows.html and others. Bisect points at 9cdf18f72b8555cb720e3d2945fe2306ea179fd4 but there are some other issues popping up around that commit as well so it's not entirely clear this is the main problem commit.