partner-contact/base_location/views/res_partner_view.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <record id="view_partner_form" model="ir.ui.view">
        <field name="name">res.partner.zip_id.2</field>
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form"/>
        <field name="arch" type="xml">
            <field name="city" position="before">
                <field name="zip_id"
                       options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
                       placeholder="Location completion"
                       class="oe_edit_only"
                        attrs="{'readonly': [('type', '=', 'contact'),('parent_id', '!=', False)]}"/>
            </field>
            <xpath expr="//field[@name='child_ids']/form//field[@name='city']"
                   position="before">
                <field name="zip_id"
                       options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
                       placeholder="City completion"
                       class="oe_edit_only"/>
            </xpath>
        </field>
    </record>

</odoo>