social/mail_split_by_partner_conf/models/mail_thread.py

# -*- coding: utf-8 -*-
# © 2017 Phuc.nt - <phuc.nt@komit-consulting.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

from odoo import models, api


class MailThread(models.AbstractModel):
    _inherit = 'mail.thread'

    @api.multi
    def message_get_recipient_values(self, notif_message=None,
                                     recipient_ids=None):
        res = super(MailThread, self).message_get_recipient_values(
            notif_message=notif_message, recipient_ids=recipient_ids)

        res['recipient_ids'] = [(6, 0, recipient_ids)]
        return res