anchor.diff:          <% (0...@email_fields_count).each do |i| %>
             <tr>
               <td>
  -            </td>
  -            <td>
                 <%= text_field_tag "email[#{i}]" %>
               </td>
             </tr>
           <% end %>
         </tbody>
  -      <tfoot>
  -        <tr>
  -          <td></td>
  -          <td></td>
  -        </tr>
  -      </tfoot>
       </table>
   
       <p>
  
positive.code:         <% @group.users.each do |user| %>
            <tr>
              <td>
                <%= user.name %>,
              </td>
              <td>
                <%= user.email %>
              </td>
            </tr>
  
negative.code:         
          <% @group.group_invitations.each do |invitation| %>
            <tr>
              <td>
                <%= text_field_tag "invitations[#{invitation.id}]", invitation.email %>
              </td>
  