"NSXMLParserErrorDomain error 41" when clicking on "Subscribe to Podcast..."

[mokshadharma]

Steps to Reproduce:

1. brew install doughnut
2. Open doughnut
3. Click on +
4. Make sure the clipboard contains: https://gpodder.github.io
5. Click on Subscribe to Podcast...
   Expected results:

No error.

Actual results:

Got popup saying: Internal unresolved error: The operation couldn't be completed. (NSXMLParserErrorDomain error 76.)

Additional Information:

• Doughnut Version: 2.0.1
• macOS Version: 14.7.3 (23H417)
• Safari Version: 18.3 (19620.2.4.111.8, 19620) (but I use Firefox, not Safari)

Curiously, this only seems to happen when https://gpodder.github.io happened to be in my clipboard at the moment that I clicked on Subscribe to Podcast.... I have not been able to reproduce the problem with anything else in my clipboard.

Screenshots: