**Impacted versions:** 8.0

**Steps to reproduce:**
To reproduce it is necessary the fifo configuration in the assignation of quants in moves.

- Create a sale order with two lines of the same product, one of that line with a route that generate moves between warehouse.

<img width="1231" alt="skitch 65" src="https://cloud.githubusercontent.com/assets/11341058/24102907/d575a638-0d53-11e7-922e-a3f034d43e94.png">

The route used has three pull rules:

1. From Stock Warehouse_1 to Virtual Locations/Inter Company Transit
2. From Virtual Locations/Inter Company Transit to Stock Warehouse_2
3. From Stock Warehouse_2 to Customers

<img width="1224" alt="skitch 66" src="https://cloud.githubusercontent.com/assets/11341058/24103147/b7c2bfbc-0d54-11e7-955c-87247a10e0bd.png">

- Confirm the sale order. It must be created three pickings:

<img width="1226" alt="skitch 67" src="https://cloud.githubusercontent.com/assets/11341058/24103498/d90c9b38-0d55-11e7-97ff-f986df8cdd9b.png">

- Transfer first two pickings.

<img width="1230" alt="skitch 70" src="https://cloud.githubusercontent.com/assets/11341058/24104496/b7b0be8a-0d58-11e7-89a2-4331fceec1d8.png">

- Before transfer third picking, review that one move has reserved the quant correctly because was reserved from the previous pickings.

<img width="1215" alt="skitch 68" src="https://cloud.githubusercontent.com/assets/11341058/24103908/23952cc8-0d57-11e7-9346-bd48d7edb54a.png">

**Current behavior:**

When check availability of this third picking, the quant already reserved is moved to the other move.

<img width="1264" alt="skitch 69" src="https://cloud.githubusercontent.com/assets/11341058/24104056/8be11616-0d57-11e7-8763-a90507315b19.png">
 
**Expected behavior:**

When check availability of this third picking, the moves already reserved must not be altered.


"""
    Table making the link between stock.moves and stock.pack.operations to compute the remaining quantities on each of these objects
    """
    _name = "stock.move.operation.link"
    _description = "Link between stock moves and pack operations"
    _columns = {
        'qty': fields.float('Quantity', help="Quantity of products to consider when talking about the contribution of this pack operation towards the remaining quantity of the move (and inverse). Given in the product main uom."),
        'operation_id': fields.many2one('stock.pack.operation', 'Operation', required=True, ondelete="cascade"),
        'move_id': fields.many2one('stock.move', 'Move', required=True, ondelete="cascade"),
        'reserved_quant_id': fields.many2one('stock.quant', 'Reserved Quant', help="Technical field containing the quant that created this link between an operation and a stock move. Used at the stock_move_obj.action_done() time to avoid seeking a matching quant again"),
    }
    def get_specific_domain(self, cr, uid, record, context=None):