<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@glyph" class="u-url mention">@<span>glyph</span></a></span> <span class="h-card" translate="no"><a href="https://hachyderm.io/@dalias" class="u-url mention">@<span>dalias</span></a></span> <span class="h-card" translate="no"><a href="https://orbital.horse/@emma" class="u-url mention">@<span>emma</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@mcc" class="u-url mention">@<span>mcc</span></a></span> <br />MUST is to be interpreted as described in RFC 6919?</p>