Y Rotation breaks

[wickerman123]

When rotating an object on the Y-Axis, the rotator flips other axis and causes the rotation to not work as expected.

When rotating in increments of 90degrees, the mesh appears to switch between 2 positions due to the flipping of other axes.

[pfist]

Thanks for catching this. I'll take a look at what's going on later this week, and hopefully have a fix out soon after that.