[imp] made o2m capable of giving a correct value for on_change
[imp] made o2m capable of giving a correct value for on_change


havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web,akretion/openerp-web