Github atom feeds throws an error

[FederAndInk]

trying to add https://github.com/nextcloud/news/tags.atom throws the following error:

malformed xml string. parsing error
DOMDocument:loadXML): Attribute data-color-mode redefined in Entity, line: 8 (2)

[Grotax]

Probably a temporary issue with the github feed generator the feed can be added in the current beta release.