I'm trying to create and update records via XML. Creating the records is fine, but when I try to update a m2m field (implied_ids for example) it simply doesn't work, the implied_ids field keeps the the initial values. I tried using the (6, False, [id, ...]) for updating the field but it's not working. noupdate is set to 0.

- 1 creating the record : 

<record model="res.users.role" id="my_role">

            <field name='name'>My role</field>

            <field name='implied_ids' eval="[(6, 0, [ref('hr.group_hr_user')])]"/>

</record>

=> this creates the record with the group_hr_user group in implied_ids

- 2 updating the record :

Now if i'm willing for example to update the implied_ids with another group (group_hr_manager), I do the following but it doesn't work. The field keeps the old group :

<record model="res.users.role" id="my_role">

            <field name='name'>My role</field>

            <field name='implied_ids' eval="[(6, 0, [ref('hr.group_hr_manager')])]"/>

</record>

Any idea ?