datatracker/ietf/templates/submit/replaces_form.html

  {% for field in replaces_form %}
  <h3>Replacement information</h3>
  <tr{% if field.errors %} class="error"{% endif %}>
    <th>{{ field.label_tag }}</th>
    <td>
      {{ field }}
      {% if field.help_text %}
      <div class="helptext">{{ field.help_text }}</div>
      {% endif %}
      {{ field.errors }}
    </td>
  </tr>
  {% endfor %}