author() }}{% endif -%}
      {% if loop.length > 1 and loop.index == 1 %}{{ self.authors() }}{% endif %}
      </a>
    </h2>
    <ul>
    {% endif %}
      {% set authordata = config.contributors[author] if author in config.contributors else None %}
      {% if authordata %}
      <li>
          <div aria-hidden="true">
            <a href="{{ url_for('contributors', year=year, lang=lang, _anchor=author) }}" tabindex="-1">
              {% if authordata.avatar_url|int != 0 %}
              <img class="ava