<group>
<group>
<field name='user_id'
- context="{'default_groups_ref': ['base.group_user', 'lunch.group_lunch_user']}"/>
+ context="{'default_groups_ref': ['base.group_user', 'base.group_partner_manager', 'lunch.group_lunch_user']}"/>
</group>
<group>
<field name='date'/>