Webostv: automatically enable newly-added sources

I’ve been banging my head all morning trying to work out why some of my sources for my TV won’t persist and can’t be invoked using the media_player.select_source service.

I was about to file a bug report and download the diagnostics for the integration when I realised I have to manually include new sources on the integration. I ticked the newly-added sources and everything started working fine.

Please tweak the integration so that new sources can be automatically included by default, and later excluded!

By default, all existing resources are included, at least, for me.

But what does new sources mean here?