{% if view_object.traceability_index.has_tags(view_object.document) %}
{#
  FIXME: When this 'if' condition is false, an empty `.tags` is still rendered.

  Temporary solution: CSS `:empty` rule to hide the empty `.tags` element.

  The CSS `:empty` rule only works when the element has no whitespace,
  so keep the loop output whitespace-free.
#}
<div class="tags">
{%- for tag_name_, tag_count_ in view_object.traceability_index.get_counted_tags(view_object.document) %}
  <span class="tag">
    {{ tag_name_ }}<span class="tag_badge">{{ tag_count_ }}</span>
  </span>
{% endfor -%}
</div>
{%- endif %}