Dear Maintainer,

At the moment I have a few RSS-feeds that have an error and more feeds are
getting the same error.

"LibXML error 4 at line 1 (column 1): Start tag expected, '<' not found"

This is shown at least for the following feeds:
https://gohugo.io/news/index.xml
http://www.blender.org/feed/
https://blog.gitea.io/index.xml

When I look at the feeds themselves, I do not see an issue with them, so I
would expect that tt-rss would be able to handle them.

It might have to do with a libxml2 package update I did recently.
2024-05-01 22:22:55 upgrade libxml2:amd64 2.9.14+dfsg-1.3+b2 2.9.14+dfsg-1.3+b3

I already restarted tt-rss, but this does not solve the issue.