[FIX] web: ignore recursiveCallMounted on not yet rendered children

This should hopefully fix the race condition that is described in the related
task. The issue is that our mounted callbacks are legitimately relying on the
component to be actually rendered.

task-2481713

closes odoo/odoo#68711

Signed-off-by: Géry Debongnie (ged) <ged@openerp.com>

addons/web/static/src/js/owl_compatibility.js

@@ -375,6 +375,17 @@ odoo.define('web.OwlCompatibility', function () {
          */
         on_attach_callback() {
             function recursiveCallMounted(component) {
+                if (
+                    component.__owl__.status !== 2 /* RENDERED */ &&
+                    component.__owl__.status !== 3 /* MOUNTED */ &&
+                    component.__owl__.status !== 4 /* UNMOUNTED */
+                ) {
+                    // Avoid calling mounted on a component that is not even
+                    // rendered. Doing otherwise will lead to a crash if a
+                    // specific mounted callback is legitimately relying on the
+                    // component being mounted.
+                    return;
+                }
                 for (const key in component.__owl__.children) {
                     recursiveCallMounted(component.__owl__.children[key]);
                 }