Actors transforms broken in cooked builds when their parent is an IsEditorOnlyActor

When creating a hierarchy of Actors in the Outliner, the transform of the "child" actors will be reset if their Parent's IsEditorOnlyActor property is true. 

The project in the EPS case is using a regular level but the problem also happens with WP. We should make sure to test the fix on both types of level. 

• Retrieve the test project from the referenced EPS case
• Cook the project for Win64
• Run the package and observe that the Cube will be at the origin
  • You can all some logging of the cube transform in the Level BP