title: Performing side effects on NGXS Forms UpdateFormValue
body: <p>My application uses NGXS Forms Plugin and I'd like to trigger certain API calls when a value in my form changes.</p>
  
  <p>Is this correct to do the following? If not, what would be the recommended way to do so?</p>
  
  <pre class="lang-js prettyprint-override"><code>@Action(UpdateFormValue)
  public doStuff(ctx: StateContext&lt;any&gt;, { payload }: UpdateFormValue) {
      // logic
  }
  </code></pre>
  
  <p>This seems to work, but then I'm unable to see update forms value action in Redux developer tools, which makes me wonder if I am doing it right.</p>