Release notes sometimes do not render
On Gnome 44.0, it seems like release notes sometimes are null.
Here is an example for Gnome Calendar, Flathub, v44.0 on Fedora 38:
It seems to me that this is caused by this pattern in the release notes description:
<p>
<ul>
<li></li>
</ul>
</p>
As we can see in the metadata of Gnome Calendar.
While this pattern:
<p></p>
<ul>
<li></li>
</ul>
seems fine as we can see in the metadata of Gnome Calculator.
Is there a reason for that in the Appstream documentation or is it a bug?