{#- A round that opens here holds its own boundary, which sticks only while its lines are in view. The rest of a round goes on the end of the one already on the page. -#}
{%- if feed_round.lines[0].is_boundary -%}
<div id="feed-round-{{ feed_round.number }}" class="feed-round">
  {%- for line in feed_round.lines %}{% include "partials/feed-line.html" %}{% endfor -%}
</div>
{%- else -%}
<div hx-swap-oob="beforeend:#feed-round-{{ feed_round.number }}">
  {%- for line in feed_round.lines %}{% include "partials/feed-line.html" %}{% endfor -%}
</div>
{%- endif -%}