usignal diamond scenario

diamond.js

import { signal, computed, effect } from "../esm/index.js";

const a = signal(1);
const b = computed(() => a.value);
const c = computed(() => a.value);
const d = computed(() => b.value + c.value);

effect(() => console.log(d.value));

a.value = 2; // Should log 4, but logs 2
a.value = 3; // Should log 6, but logs 2