I subscribed this feed: https://swimswam.com/deutsch/feed/

it sets the website URL to <https://swimswam.com/wp-json/>; rel=https://api.w.org/, https://swimswam.com/wp-json/wp/v2/categories/43600; type=application/json

Expected behavior
maybe an empty website URL

Environment information (please complete the following information):

• FreshRSS version: 1.20.0-dev

If the website URL field keeps empty than try it in development mode