I use attachment_use in xml report, but it doesn't work, can anyone help me? I want to define attachment_use as False.
<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <report
            auto="False"
            id="account.account_invoices"
            model="account.invoice"
            name="aa.account_invoice"
            rml="aa/report/account_print_invoice.rml"
            string="Invoices"
            attachment="(object.state in ('open','paid')) and ('INV'+(object.number or '').replace('/','')+'.pdf')"
            attachment_use="0"
            usage="default"
            multi="True"
            header="True"/>
    </data>
</openerp>
And then, I upgrade my modul aa, but attachment_use is always True.
 
                        
I got the same problem... any update about this?