Impacted versions: 9.0

Steps to reproduce:

* Create an MTO product with 
  * Product Type: Stockable Product
  * Routes: "Buy" and "Make to Order"
* Update Qty on Hand to any quantity (i.e, 2).
* Create a sales order with this product and a number <= to the one in the step before.
* Confirm the sales order.

Current behavior:

The created delivery picking appears in state "Reserved" and the current quantity on stock has been reserved, allowing you to transfer that stock.

Expected behavior:

The created delivery picking should be in "Waiting another operation", or at least in "Waiting availability" until the purchase order is confirmed (if you have defined a supplier for the product and the procurement creates the purchase order), which seems to be the current behavior when there's no stock available (is this also correct, as it allows to manually reserve?).
'move_dest_id': move_id,
            })
            move_obj.action_confirm(cr, uid, [move_id], context=None)
from openerp.report import report_sxw
class stock_package(osv.osv):
    """
    These are the packages, containing quants and/or other packages
    """
    _name = "stock.quant.package"
    _description = "Physical Packages"
    _parent_name = "parent_id"
    _parent_store = True
    _parent_order = 'name'
    _order = 'parent_left'
    def name_get(self, cr, uid, ids, context=None):
        res = self._complete_name(cr, uid, ids, 'complete_name', None, context=context)
        return res.items()
    def _complete_name(self, cr, uid, ids, name, args, context=None):
        """ Forms complete name of location from parent location to child location.
        @return: Dictionary of values
        """
        res = {}
        for m in self.browse(cr, uid, ids, context=context):
            res[m.id] = m.name
            parent = m.parent_id
            while parent:
                res[m.id] = parent.name + ' / ' + res[m.id]
                parent = parent.parent_id
        return res
    def _get_packages(self, cr, uid, ids, context=None):