purchase_addresses: fix picking of generated moves
purchase_addresses: fix picking of generated moves

when a stock.location.path is involved for a PO, the information is not
available in the procurement.group which is dynamically generated in an
place where it cannot be easily completed, so we updatet it when the
order lines are being prepared

yvaucher/stock-logistics-transport,open-synergy/stock-logistics-transport,Endika/stock-logistics-transport,Antiun/stock-logistics-transport,xpansa/stock-logistics-transport