[FIX] stock: add a default group_id if stock.move created from stock.picking

The group_id of a picking is related to the group_id of the first stock.move
related to it. When a stock.move is added to a picking manually, the group_id
is normally not set. This can be an issue in a very specific case:

- In Settings / Sales, tick "Allow setting a different address for delivery and invoicing "
- Create a SO - Invoicing on delivery
- Customer: Agrolait; Delivery address: Thomas Passot
- Add a line: ice cream
- Confirm the SO
- In the DO, add a line , with an expected date higher than the one of the existing move
- Save
- Mark as todo
- Force reservation
- transfer - transfer
- Create invoice
=> See that two invoices are created, one for Agrolait, one for Thomas passot ( the DELIVERY address )

opw-639955

addons/stock/stock.py

@@ -1824,6 +1824,13 @@ class stock_move(osv.osv):
     def _default_destination_address(self, cr, uid, context=None):
         return False
 
+    def _default_group_id(self, cr, uid, context=None):
+        context = context or {}
+        if context.get('default_picking_id', False):
+            picking = self.pool.get('stock.picking').browse(cr, uid, context['default_picking_id'], context=context)
+            return picking.group_id.id
+        return False
+
     _defaults = {
         'location_id': _default_location_source,
         'location_dest_id': _default_location_destination,
@@ -1838,6 +1845,7 @@ class stock_move(osv.osv):
         'procure_method': 'make_to_stock',
         'propagate': True,
         'partially_available': False,
+        'group_id': _default_group_id,
     }
 
     def _check_uom(self, cr, uid, ids, context=None):

addons/stock/stock_view.xml

@@ -1064,6 +1064,7 @@
                         <field name="product_id" on_change="onchange_product_id(product_id,location_id,location_dest_id, parent.partner_id)"/>
                         <field name="procure_method" attrs="{'readonly': [('state', '!=', 'draft')]}" groups="stock.group_adv_location"/>
                         <field name="picking_type_id" invisible="1"/>
+                        <field name="group_id" invisible="1"/>
                         <label for="product_uom_qty"/>
                         <div>
                             <field name="product_uom_qty" on_change="onchange_quantity(product_id, product_uom_qty, product_uom, product_uos)" class="oe_inline"/>