flectra/addons/mrp_repair/security/mrp_repair_security.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>
    <data noupdate="1">

<!-- Multi -->
    <record model="ir.rule" id="mrp_repair_rule">
        <field name="name">mrp_repair multi-company</field>
        <field name="model_id" search="[('model','=','mrp.repair')]" model="ir.model"/>
        <field name="global" eval="True"/>
        <field name="domain_force">['|',('company_id','child_of',[user.company_id.id]),('company_id','=',False)]</field>
    </record>

    </data>
</flectra>