[IMP] stock: scheduled date as current datetime on return.

When a picking is returned, the scheduled date stay unchanged. This date can be
in the past if the return is made at least one day after the transfer. This commit
set the return day as scheduled date

addons/stock/wizard/stock_picking_return.py

@@ -78,6 +78,7 @@ def _prepare_move_default_values(self, return_line, new_picking):
             'product_uom': return_line.product_id.uom_id.id,
             'picking_id': new_picking.id,
             'state': 'draft',
+            'date_expected': fields.Datetime.now(),
             'location_id': return_line.move_id.location_dest_id.id,
             'location_dest_id': self.location_id.id or return_line.move_id.location_id.id,
             'picking_type_id': new_picking.picking_type_id.id,