Fix the reverse animation type for `CubeAnimator`
Fix the reverse animation type for `CubeAnimator`

alexiosdev/IBAnimatable,IBAnimatable/IBAnimatable,seanwoodward/IBAnimatable,seanwoodward/IBAnimatable,IBAnimatable/IBAnimatable,JakeLin/IBAnimatable,JakeLin/IBAnimatable,alexiosdev/IBAnimatable,IBAnimatable/IBAnimatable