When updating the module list (`ir.module.module.update_list()`), new modules that are not installable were ignored. This behavior was not consistent with the database initialization [1] which creates all modules. [1] https://github.com/odoo/odoo/blob/5d932e5db164fe80fd7c011ddd53f3494ef89ef5/odoo/modules/db.py#L51-L54