Regression in \Description

[dginev]

We very recently introduced ARIA attributes and the \Description macro in #2591 .

I think that has already regressed, or maybe was even originally incomplete, as I am seeing empty notes deposited instead of the descriptive content.

Example article: https://arxiv.org/html/2405.00127v2

with resulting HTML (indents mine):

<figcaption class="ltx_caption">
  <span class="ltx_tag ltx_tag_figure">Figure 2. </span>
  Example of weakly correct (top) and strongly correct (bottom) stroke rendering. 
  The left example has a curvature cusp and requires evolutes to render correctly, 
  while the right requires the inner join.
  <span class="ltx_note ltx_nodisplay" id="acmlabel2">
    <sup class="ltx_note_mark">†</sup>
      <span class="ltx_note_outer">
        <span class="ltx_note_content">
           <sup class="ltx_note_mark">†</sup>
           <span class="ltx_note_type">: </span>
        </span></span></span></figcaption>

I'll take a look a little later if no one beats me to it, just recording this for now.