title: How do I rotate an Entity in RealityKit without duplicating it?
body: <p>I am rotating an entity loaded from Reality Composer with the below code. I expect that the sphere will simply rotate. However, I am left with both the new rotated entity and the old entity. Thought this would be simple. </p>
  
  <p>What do I do to just rotate an entity without duplicating it?</p>
  
  <pre><code>ball?.transform.rotation = simd_quatf(angle: GLKMathDegreesToRadians(90), 
                                         axis: SIMD3(x: 0, y: 1, z: 0.5))
  </code></pre>