t-out with arrays is funky

[ged-odoo]

This code show a situation with a t-out defined with a array

import { Component, mount, xml, signal, proxy, onMounted } from "@odoo/owl";

class Root extends Component {
    static template = xml`<t t-out="this.value().join('.')"/>`;

    value = signal.Array([1,2]);

    setup() {
        onMounted(() => {
            this.value().unshift(0);
        });
    }
}

mount(Root, document.body, { templates: TEMPLATES, dev: true });

It only works because we have a .join('.') on the t-out, making it a string. otherwise, without it, the output does not display the 0. This is likely to be caused by the fact that owl compares the reference of the array in the t-out, which did not change, so it does not update the content. not sure it is something that we should change, just putting the example here for discussion