JB Radio2

[TheOldPresbyope]

Nice find. Looks like @philrandal nailed it considering this final sentence in the xiph.org post:

Also, some buggy clients consider a change of metadata in an Ogg
stream (which is usually accompanied by a change in stream serial
number) as being the end of streaming, and will stop playback on a
metadata change.

Here 'buggy client' would mean MPD and its plugins since that's where radio streams are decoded in moOde.

Regards,
Kent