This moduld Fix the big purchase bug(only in odoo 10)

Lastest update: v10.0.4.17, 2018-04-17

• Create a PO with product
• Validate a picking
• Make a return picking.
• Valide this return.
• -> The quantity received is not update (except Master)
• Make a return of return (to return in initial situation). (better than to do a copy of original to keep the link with purchase and parent picking).
• Validate partialy this return-return
• -> The quantity received is not update
• -> The action to show pickings doesn’t show the return-return picking