Can't change unit (uom) on a duplicated product

[Gilles Lehoux]

If you want to change the unit (uom) of a product or create a duplicate of a product but with a different unit then the system will not allow it. The error message says that the solution is to create a new product but duplication is a normal means of creating a new product.

Solution: Allow changing of units when a product is a newly created duplicate.

Reproduce:
1) http://7-0-31679-all.runbot.openerp.com/

2) (Enable different units) Settings > Sales > Allow using different units of measures
3) Menu: Sales > Products > USB adapter
4) Menu: More > Duplicate
5) Change unit to Liters.
6) Error: "Unit of Measure categories Mismatch! New Unit of Measure 'Liter(s)' must belong to same Unit of Measure category 'Unit' as of old Unit of Measure 'Unit(s)'. If you need to change the unit of measure, you may deactivate this product from the 'Procurements' tab and create a new one."

[Amit Patel (amitkumarnpatel)]

Hello!

I also faced the same issue at my end, If I try to change the product Unit of Measure(for USB adapter Unit(s) to Liter(s)) it's raises the same error.

Thank You!