title: Wrapper component for admin-on-rest
body: <p>I would like to create a new component that contains <code>Inputs</code> and <code>Fields</code> from <code>aor</code> and use it in <code>&lt;SimpleForm&gt;</code> and <code>&lt;TabbedForm&gt;</code> as below:</p>
  
  <pre><code>const WrapperComp = () =&gt; {
    return (
      &lt;div&gt;
        &lt;TextFieldLabel muiTheme={muiTheme}&gt;Title Example&lt;/TextFieldLabel&gt;,
        &lt;TextInput source="status"/&gt;,
        &lt;TextField source="status"/&gt;
      &lt;/div&gt;
    )
  } 
  </code></pre>
  
  <hr>
  
  <pre><code>&lt;SimpleForm&gt;
    &lt;WrapperComp /&gt;
  &lt;/SimpleForm&gt;
  </code></pre>
  
  <p>but I get <code>Uncaught Error: The TextInput component wasn't called within a redux-form &lt;Field&gt;. Did you decorate it and forget to add the addField prop to your component?</code>. </p>
  
  <p>Any help would be appreciated. Thanks!</p>