**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.


addons/stock/stock.py
customer_loc, supplier_loc = self._get_partner_locations(cr, uid, ids, context=context)
        return {
            'one_step': (_('Receipt in 1 step'), []),
            'two_steps': (_('Receipt in 2 steps'), [(warehouse.wh_input_stock_loc_id, warehouse.lot_stock_id, warehouse.int_type_id.id)]),
            'three_steps': (_('Receipt in 3 steps'), [(warehouse.wh_input_stock_loc_id, warehouse.wh_qc_stock_loc_id, warehouse.int_type_id.id), (warehouse.wh_qc_stock_loc_id, warehouse.lot_stock_id, warehouse.int_type_id.id)]),
            'crossdock': (_('Cross-Dock'), [(warehouse.wh_input_stock_loc_id, warehouse.wh_output_stock_loc_id, warehouse.int_type_id.id), (warehouse.wh_output_stock_loc_id, customer_loc, warehouse.out_type_id.id)]),
            'ship_only': (_('Ship Only'), [(warehouse.lot_stock_id, customer_loc, warehouse.out_type_id.id)]),
            'pick_ship': (_('Pick + Ship'), [(warehouse.lot_stock_id, warehouse.wh_output_stock_loc_id, warehouse.pick_type_id.id), (warehouse.wh_output_stock_loc_id, customer_loc, warehouse.out_type_id.id)]),
            'pick_pack_ship': (_('Pick + Pack + Ship'), [(warehouse.lot_stock_id, warehouse.wh_pack_stock_loc_id, warehouse.pick_type_id.id), (warehouse.wh_pack_stock_loc_id, warehouse.wh_output_stock_loc_id, warehouse.pack_type_id.id), (warehouse.wh_output_stock_loc_id, customer_loc, warehouse.out_type_id.id)]),
        }
    def _handle_renaming(self, cr, uid, warehouse, name, code, context=None):
        location_obj = self.pool.get('stock.location')
        route_obj = self.pool.get('stock.location.route')
        pull_obj = self.pool.get('procurement.rule')
        push_obj = self.pool.get('stock.location.path')
        
        location_id = warehouse.lot_stock_id.location_id.id
        location_obj.write(cr, uid, location_id, {'name': code}, context=context)
        
        for route in warehouse.route_ids:
            route_obj.write(cr, uid, route.id, {'name': route.name.replace(warehouse.name, name, 1)}, context=context)
            for pull in route.pull_ids:
                pull_obj.write(cr, uid, pull.id, {'name': pull.name.replace(warehouse.name, name, 1)}, context=context)
            for push in route.push_ids:
                push_obj.write(cr, uid, push.id, {'name': push.name.replace(warehouse.name, name, 1)}, context=context)
        
        if warehouse.mto_pull_id.id:
            pull_obj.write(cr, uid, warehouse.mto_pull_id.id, {'name': warehouse.mto_pull_id.name.replace(warehouse.name, name, 1)}, context=context)
    def _check_delivery_resupply(self, cr, uid, warehouse, new_location, change_to_multiple, context=None):