Comment 1 for bug 620815

Error similar aparece un poquito más abajo en el mismo fichero. Así los he dejado y funcionan por si los quereis cambiar:
    <!--***************************** BANK STATEMENT *********************************-->
    <record id="view_bank_statement_form_ext" model="ir.ui.view">
        <field name="name">account.bank.statement.form.ext</field>
        <field name="model">account.bank.statement</field>
        <field name="type">form</field>
        <field name="inherit_id" ref="account_payment.view_bank_statement_form"/>
        <field name="arch" type="xml">
            <button name="601" position="replace">
                <button name="%(wizard_populate_statement_ext)d" string="Import payment lines" type="action"/>
            </button>
        </field>
    </record>

    <!--***************************** PAYMENT ORDER *********************************-->
    <!-- Filter invoices by payment type. Allow negative payment amounts -->
    <record id="view_payment_order_form_ext1" model="ir.ui.view">
        <field name="name">payment.order.form.ext1</field>
        <field name="model">payment.order</field>
        <field name="type">form</field>
        <field name="inherit_id" ref="account_payment.view_payment_order_form"/>
        <field name="arch" type="xml">
            <button name="603" position="replace">
                <newline/>
                <field name="payment_type_name" invisible="1"/>
                <field name="type"/>
                <button colspan="2" name="%(wizard_populate_payment_ext)d" string="Select invoices to pay/receive payment" type="action" attrs="{'invisible':[('state','=','done')]}"/>
            </button>
        </field>
    </record>