title: In Vue3 changing root state stopped working
body: <p>My mutations which changes root state stopped working</p>
  <pre><code> SET_STATE(state, payload) {
      state = { ...state, ...payload };
   }
  </code></pre>
  <p>But changing inner value is working</p>
  <pre><code>SET_INNER_STATE(state, payload) {
     state.inner = payload;
  }
  </code></pre>