title: How to properly use radioGroup?
body: <p>I have a problem regarding the implementation of my radioGroup. If I selected one of the options, and clicked the button "Apply Changes", the success message is shown, but the value that I have chosen is unselected, which seems that I haven't selected any values from my radioGroup at all. This is my code:</p>
  
  <pre><code>&lt;cm:fieldRow required="true" label="Nature of employment" hint="" bean="${employmentInfo}" field="employmentNature.id"&gt;
      &lt;g:radioGroup name="employmentNature.id" values="${EmploymentNature.list().id}" labels="${EmploymentNature.list().title}"&gt;
          ${it.radio} ${it.label}&lt;br/&gt;
      &lt;/g:radioGroup&gt;
  &lt;/cm:fieldRow&gt;
  </code></pre>
  
  <p>When I haven't selected any of the values from the radioGroup, and clicked on the "Add Changes" button, the error message that I have set is not showing.Please help! Thanks!</p>