(which returns the keys of $backlinks{$page}, and might be suitable for
exporting) and IkiWiki::backlinks (which calls backlink_pages, then performs
the same lossy transformation as before on the result).
(which returns the keys of $backlinks{$page}, and might be suitable for
exporting) and IkiWiki::backlinks (which calls backlink_pages, then performs
the same lossy transformation as before on the result).