golem/golem_member_minor/views/account_invoice.xml

<?xml version="1.0" encoding="utf-8"?>

<!--
Copyright 2018 Fabien Bourgeois <fabien@yaltik.com>
Copyright 2018 Youssef El Ouahby <youssef@yaltik.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
-->

<odoo>
  <data>

    <!-- Forms -->
    <record id="account.invoice_form_inherited_member_minor" model="ir.ui.view">
      <field name="name">account.invoice.form.iherited.member.minor</field>
      <field name="model">account.invoice</field>
      <field name="inherit_id" ref="account.invoice_form" />
      <field name="arch" type="xml">
        <field name='partner_id' position='after'>
            <field name='is_minor_invoice' invisible="1" />
            <field name="partner_ids" widget="many2many_tags" readonly="1"
              attrs="{'invisible': [('is_minor_invoice', '=', False)]}" />
        </field>
      </field>
    </record>

  </data>
</odoo>