Properly handle cube rotations when location has a pitch and yaw of 0, 0

[Connorppeach]

Cube rotations, and possibly face rotations are handled improperly when the model is spawned with a pitch and yaw of 0 0. Here is 2 demo models with their rotations set to 0:

and here is the same models with them set to 0.01, 0.01:

Unfortunately, I dont have a single nice line change that fixes this, mostly because I am too tired to throw one together, but a hacky workaround is to turn 0 rotations into very small ones, and that should work for most models.

BBModels are in a repo I made a minute ago for testing.

[MagmaGuy]

So this is a known bug probably caused by gimball lock something similar that I ahve not been able to fix. The real reason why it is happening is because you are using rotations of 90 degrees for your child bones. This frequently results in the rotation math being wrong as to how it should be flipping the bones. For now, all I can say is I don't recommend you have a bunch of bones with 90 degree default rotations.

I tried ot solve this months ago, but ended up just wasting a ton of time with no real fix I'm afraid, so for now it is what it is.