Creating New material copies the attribute_dictionary

[thomthom]

If you have a material that has an attribute_dictionary attached as the current material when you create a new material from the SU UI it will transfer the attribute_dictionary to the new material.

This does not occur when you use the ruby API.

I would expect it not to copy the attribute_dictionary on account that it should be a brand new material. Ruby scripts might add attribute_dictionary that's relevant for that material only - which could lead to problems if the attributes exist in the new one as well.