**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.


'pick_type_id': pick_type_id,
            'int_type_id': int_type_id,
        }
        super(stock_warehouse, self).write(cr, uid, warehouse.id, vals=vals, context=context)
    def create(self, cr, uid, vals, context=None):
        if context is None:
            context = {}
        if vals is None:
            vals = {}
        data_obj = self.pool.get('ir.model.data')
        seq_obj = self.pool.get('ir.sequence')
        picking_type_obj = self.pool.get('stock.picking.type')
        location_obj = self.pool.get('stock.location')
        
        loc_vals = {
                'name': _(vals.get('code')),
                'usage': 'view',
                'location_id': data_obj.get_object_reference(cr, uid, 'stock', 'stock_location_locations')[1],
        }
        if vals.get('company_id'):
            loc_vals['company_id'] = vals.get('company_id')
        wh_loc_id = location_obj.create(cr, uid, loc_vals, context=context)
        vals['view_location_id'] = wh_loc_id
        
        def_values = self.default_get(cr, uid, {'reception_steps', 'delivery_steps'})
        reception_steps = vals.get('reception_steps',  def_values['reception_steps'])
        delivery_steps = vals.get('delivery_steps', def_values['delivery_steps'])
        context_with_inactive = context.copy()
        context_with_inactive['active_test'] = False
        sub_locations = [