RSS Feed Shows NULL When Asking For Thumbnail

I don’t remember WP feeds to have any care for thumbnails feature. There is some handling for enclosure meta (seems dusty, don’t even remember what that is), but from quick test it seems to ignore thumbnails.

Why do you expect exactly for thumbnails to just appear in feed?

Unless I am missing something, it seems you would need to hook in and add thumbnail information to the feed yourself.

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