**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
""" Will check if the resupply routes from this warehouse follow the changes of number of delivery steps """
        
        route_obj = self.pool.get("stock.location.route")
        pull_obj = self.pool.get("procurement.rule")
        routes = route_obj.search(cr, uid, [('supplier_wh_id','=', warehouse.id)], context=context)
        pulls = pull_obj.search(cr, uid, ['&', ('route_id', 'in', routes), ('location_id.usage', '=', 'transit')], context=context)
        if pulls:
            pull_obj.write(cr, uid, pulls, {'location_src_id': new_location, 'procure_method': change_to_multiple and "make_to_order" or "make_to_stock"}, context=context)
        
        mto_route_id = self._get_mto_route(cr, uid, context=context)
        if not change_to_multiple:
             
            
            pull_recs = pull_obj.browse(cr, uid, pulls, context=context)
            transfer_locs = list(set([x.location_id for x in pull_recs]))
            vals = [(warehouse.lot_stock_id , x, warehouse.out_type_id.id) for x in transfer_locs]
            mto_pull_vals = self._get_mto_pull_rule(cr, uid, warehouse, vals, context=context)
            for mto_pull_val in mto_pull_vals:
                pull_obj.create(cr, uid, mto_pull_val, context=context)
        else:
            
            pulls = pull_obj.search(cr, uid, ['&', ('route_id', '=', mto_route_id), ('location_id.usage', '=', 'transit'), ('location_src_id', '=', warehouse.lot_stock_id.id)], context=context)
            if pulls:
                pull_obj.unlink(cr, uid, pulls, context=context)
    def _check_reception_resupply(self, cr, uid, warehouse, new_location, context=None):