Hi Team,

I was testing and created a Picking for Goods Return, however, when I did that, following error was created:
![image](https://user-images.githubusercontent.com/5710396/32747248-2f22e1f0-c8de-11e7-817a-17e238e928b3.png)

I checked and found that in the code instead of account.move, stock.move object was referenced.
![image](https://user-images.githubusercontent.com/5710396/32747171-e9a88832-c8dd-11e7-8c35-cd184c92cbfe.png)

Please advice.

Regards


addons/stock_account/models/stock.py
_inherit = "stock.location"
    valuation_in_account_id = fields.Many2one(
        'account.account', 'Stock Valuation Account (Incoming)',
        domain=[('internal_type', '=', 'other'), ('deprecated', '=', False)],
        help="Used for real-time inventory valuation. When set on a virtual location (non internal type), "
             "this account will be used to hold the value of products being moved from an internal location "
             "into this location, instead of the generic Stock Output Account set on the product. "
             "This has no effect for internal locations.")
    valuation_out_account_id = fields.Many2one(
        'account.account', 'Stock Valuation Account (Outgoing)',
        domain=[('internal_type', '=', 'other'), ('deprecated', '=', False)],
        help="Used for real-time inventory valuation. When set on a virtual location (non internal type), "
             "this account will be used to hold the value of products being moved out of this location "
             "and into an internal location, instead of the generic Stock Output Account set on the product. "
             "This has no effect for internal locations.")
class StockQuant(models.Model):
    _inherit = "stock.quant"
    @api.multi
    def _compute_inventory_value(self):
        real_value_quants = self.filtered(lambda quant: quant.product_id.cost_method == 'real')
        for quant in real_value_quants:
            quant.inventory_value = quant.cost * quant.qty
        return super(StockQuant, self - real_value_quants)._compute_inventory_value()
    @api.multi
    def _price_update(self, newprice):