Purpose of this commit is to fix computation of access link. In some cases msg_vals modification leads to invalid URL computation, notably for frontend or backend differentiation for target recipients. Followup of odoo/odoo#63292 . Task ID-2513724 COM PR odoo/odoo#69607 ENT PR odoo/enterprise#17849 X-original-commit: e618597876692f2d24f8e9308c747b8d1f2d8905