Im not sure why this happens. On some folders i see those output.
Also it is not possible to edit those files. If i edit something in those files the editor status just hangs on "Saving changes"
The best on all is. When i close the window then, the file was just deleted by the app 😆
On other Software the user and the group was shown. This is also not serverside. Saw it on severall servers. Until today, it just didn't interested me, because I've never had to edit a file with such properties.
In this case the user and the group was "www-data".