[vtkusers] vtkTransform concatenation

[N.E Mackenzie-Mackay]

Quick question.  Say I had two vtkTransform's: 'a' and 'b'

if I concatenated a with b: a->concatenate(b);

	1. if I deleted 'a' would this delete 'b'.
	2. if I delete 'b' would this screw up the pipeline for 'a'

Thanks,
Neilson