Reviewers: ,
Please review this at http://codereview.tryton.org/717002/ Affected files: M CHANGELOG M trytond/model/modelsql.py M trytond/modules/account_invoice/invoice.py M trytond/modules/purchase/__init__.py M trytond/modules/purchase/invoice.py M trytond/modules/purchase/purchase.py M trytond/modules/sale/__init__.py M trytond/modules/sale/invoice.py M trytond/modules/sale/sale.py M trytond/modules/sale_supply/sale.py M trytond/modules/sale_supply_drop_shipment/sale.py M trytond/modules/sale_supply_drop_shipment/stock.py M trytond/modules/stock/__init__.py M trytond/modules/stock/move.py M trytond/modules/stock/move.xml M trytond/modules/stock/shipment.py M trytond/tests/test_fields.py
