When setting an importScene to a View3D none of the models in the imported scene get their bounds set. The bounds remain at 0,0,0 at all times. On the other hand if the models are children of the View3D the bounds would be set to non zero.
Steps to reproduce the problem:
- run the attached project
- click on the screen to print out the teapot bounds
=> the bounds will not change from 0,0,0