**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.


'''Find the first level ancestors of given move '''
        ancestors = []
        move2 = move
        while move2:
            ancestors += [x.id for x in move2.move_orig_ids]
            
            move2 = not move2.move_orig_ids and move2.split_from or False
        return ancestors
    @api.cr_uid_ids_context
    def recalculate_move_state(self, cr, uid, move_ids, context=None):
        '''Recompute the state of moves given because their reserved quants were used to fulfill another operation'''
        for move in self.browse(cr, uid, move_ids, context=context):
            vals = {}
            reserved_quant_ids = move.reserved_quant_ids
            if len(reserved_quant_ids) > 0 and not move.partially_available:
                vals['partially_available'] = True
            if len(reserved_quant_ids) == 0 and move.partially_available:
                vals['partially_available'] = False
            if move.state == 'assigned':
                if self.find_move_ancestors(cr, uid, move, context=context):
                    vals['state'] = 'waiting'
                else:
                    vals['state'] = 'confirmed'
            if vals:
                self.write(cr, uid, [move.id], vals, context=context)
    def action_done(self, cr, uid, ids, context=None):
        """ Process completely the moves given as ids and if all moves are done, it will finish the picking.
        """
        context = context or {}
        picking_obj = self.pool.get("stock.picking")