Bug fix in dataType operator ==. Check that tuples have the same number of subtypes.
Bug fix in dataType operator ==. Check that tuples have the same number
of subtypes.

IanFinlayson/tetra,IanFinlayson/tetra,IanFinlayson/tetra,IanFinlayson/tetra,IanFinlayson/tetra,IanFinlayson/tetra