deep watcher not fired if watching an array of refs #807
Description
1.1.1 (working)
https://codepen.io/jkarczm/pen/dyRYOZo?editors=1010
vue 3 (working)
1.1.2 (not working), same in 1.1.3
https://codepen.io/jkarczm/pen/rNwOWqb?editors=0010
setup () {
const arr = ref([1, 2, 3]);
watch ([arr], () => alert('array updated'), { deep: true });
return { arr, click: () => arr.value.push(5) };
}