Why is oldids taking precedence here?

index.bs

<h4 oldids="dom-sequence" id="idl-sequence" interface="" dfn="" lt="sequence|sequence&lt;T&gt;">Sequences — sequence&lt;|T|&gt;</h4>

<p>
  The {{sequence&lt;T&gt;}}
  type is a parameterized type whose values are (possibly zero-length) sequences of
  values of type |T|.
</p>

index.html

<h4 class="heading settled dfn-paneled" data-dfn-type="dfn" data-level="4.10.24" data-lt="sequence|sequence<T>" data-noexport="" id="idl-sequence" interface="">
    <span class="secno">4.10.24. </span>
    <span class="content">Sequences — sequence&lt;<var>T</var>></span><span id="dom-sequence"></span>
</h4>
<p>
    The <code class="idl"><a data-link-type="idl" href="https://heycam.github.io/webidl/#dom-sequence">sequence&lt;T></a></code>
    type is a parameterized type whose values are (possibly zero-length) sequences of
    values of type <var>T</var>.
</p>