[vtkusers] Camera Position does not update when ParallelProjection = On

[Paul]

I've been trying to eliminate the camera position jumping to the
origin when I call SetParallelProjection(True). I noticed that the
camera position with GetPosition() does not change when the camera is
moved around, and SetPosition() seems to have no effect when
ParallelProjection is on.

I'm using vtk 5.2.1. Is this a known bug?

Paul