Missing passing context in sale_order_line function(product_uom_change)

Missing passing context in sale_order_line function(product_uom_change)

OpenERP(trunk)

    def product_uom_change(self, cursor, user, ids, pricelist, product, qty=0,
            uom=False, qty_uos=0, uos=False, name='', partner_id=False,
            lang=False, update_tax=True, date_order=False, context=None):
        context = context or {}
        lang = lang or ('lang' in context and context['lang'])
        res = self.product_id_change(cursor, user, ids, pricelist, product,
                qty=qty, uom=uom, qty_uos=qty_uos, uos=uos, name=name,
                partner_id=partner_id, lang=lang, update_tax=update_tax,
- date_order=date_order)
+ date_order=date_order, context=context)
        if 'product_uom' in res['value']:
            del res['value']['product_uom']
        if not uom:
            res['value']['price_unit'] = 0.0
        return res