Thank you for reading!
I have tried many variations of this and it successfully appears in web.assets_backend.js. However, no version overrides the Composer class field default of isLog. Thank you for your consideration.
Odoo file: mail/static/src/models/composer/composer.js line 1214:
/**
* If true composer will log a note, else a comment will be posted.
*/
isLog: attr({
default: false,
}),
One of many override attempts:
odoo.define('my_mail_module/static/src/js/my_mail_composer.js', ['mail.Composer'], function(require) {
"use strict";
const Composer = require('mail.Composer');
const { attr } = require('mail/static/src/model/model_field.js');
Composer.include({
isLog: attr({
default: true,
}),
});
});