<fieldset class="choices">
  <legend>{{ self.question }}</legend>
  <div class="choices">
    {% for choice in custom_choices %}
    <span class="choice">
      <label><input type="radio" name="{{ self.name }}" value="{{ choice.value }}"{% if self.student_choice == '{{ choice.value }}' %} checked{% endif %}> {{ choice.content }}</label>
    </span>
    {% endfor %}
  </div>
</fieldset>

<fieldset class="choices">
  <legend>{{ self.question }}</legend>
  <div class="choices">
    {% for choice in custom_choices %}
    <span class="choice">
      <label><input type="radio" name="{{ self.name }}" value="{{ choice.value }}"{% if self.student_choice == choice.value %} checked{% endif %}> {{ choice.content }}</label>
    </span>
    {% endfor %}
  </div>
</fieldset>

Fix preservation of previously selected choices for quizz type='choice'
Fix preservation of previously selected choices for quizz type='choice'
