How to fix `uom_id` failed against a constraint:
When I go to add a product, I get the following error:
`uom_id` failed against a constraint: Error: The default Unit of Measure and the purchase Unit of Measure must be in the same category.
I have not been able to figure out how to resolve this. - The units are the same in both the information and procurements tabs.
Odoo Version 8.0-20150522