[FIX]Warehouse:-shouldnt be able to change the company after have validated an inventory

lp bug: https://launchpad.net/bugs/690228 fixed

bzr revid: ron@tinyerp.com-20101215062629-dl40cw2g1kyacgpw

addons/stock/stock.py

@@ -1671,7 +1671,7 @@ class stock_move(osv.osv):
             result['product_qty'] = product_uos_qty
 
         return {'value': result}
-    
+
     def onchange_product_id(self, cr, uid, ids, prod_id=False, loc_id=False,
                             loc_dest_id=False, address_id=False):
         """ On change of product id, if finds UoM, UoS, quantity and UoS quantity.
@@ -2440,7 +2440,8 @@ class stock_inventory(osv.osv):
         'inventory_line_id': fields.one2many('stock.inventory.line', 'inventory_id', 'Inventories', states={'done': [('readonly', True)]}),
         'move_ids': fields.many2many('stock.move', 'stock_inventory_move_rel', 'inventory_id', 'move_id', 'Created Moves'),
         'state': fields.selection( (('draft', 'Draft'), ('done', 'Done'), ('confirm','Confirmed'),('cancel','Cancelled')), 'State', readonly=True, select=True),
-        'company_id': fields.many2one('res.company','Company',required=True,select=True),
+        'company_id': fields.many2one('res.company', 'Company', required=True, select=True, readonly=True, states={'draft':[('readonly',False)]}),
+
     }
     _defaults = {
         'date': time.strftime('%Y-%m-%d %H:%M:%S'),