**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.


to_clean = { 'value': {} }
        if filter not in ('product', 'product_owner'):
            to_clean['value']['product_id'] = False
        if filter != 'lot':
            to_clean['value']['lot_id'] = False
        if filter not in ('owner', 'product_owner'):
            to_clean['value']['partner_id'] = False
        if filter != 'pack':
            to_clean['value']['package_id'] = False
        return to_clean
    _constraints = [
        (_check_filter_product, 'The selected inventory options are not coherent.',
            ['filter', 'product_id', 'lot_id', 'partner_id', 'package_id']),
    ]
class stock_inventory_line(osv.osv):
    _name = "stock.inventory.line"
    _description = "Inventory Line"
    _order = "inventory_id, location_name, product_code, product_name, prodlot_name"
    def _get_product_name_change(self, cr, uid, ids, context=None):
        return self.pool.get('stock.inventory.line').search(cr, uid, [('product_id', 'in', ids)], context=context)
    def _get_location_change(self, cr, uid, ids, context=None):
        return self.pool.get('stock.inventory.line').search(cr, uid, [('location_id', 'in', ids)], context=context)
    def _get_prodlot_change(self, cr, uid, ids, context=None):
        return self.pool.get('stock.inventory.line').search(cr, uid, [('prod_lot_id', 'in', ids)], context=context)
    def _get_theoretical_qty(self, cr, uid, ids, name, args, context=None):