Empty Atom feed results in "(Untitled Feed)" in sidebar, but the feed has a title

[belkadan]

Describe the bug I subscribed to https://irenes.space/leaves, which at the time of this posting has the following feed contents (omitting an element-level XML comment):

<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
  <title>Leaves Given to the Wind</title>
  <id>urn:uuid:5b59bc17-a41f-4f34-ba50-a4cdc7068413</id>
  <link rel="self" type="application/atom+xml"
        href="https://irenes.space/leaves.atom"/>
  <link rel="alternate" type="text/html"
        href="https://irenes.space/leaves/"/>
  <author>
    <name>Irenes (Irene Knapp)</name>
  </author>
  <generator>vim</generator>
  <updated>2024-09-12T21:40:00-07:00</updated>
</feed>

This ought to be enough to put a title in the sidebar for when they do add entries, but instead the sidebar and info panel show "(Untitled Feed)".

Screenshots

Please complete the following information:

• Vienna 3.9.2 df48d9ec (8268)
• macOS Sonoma 14.6.1 (23G93)