... how this:
https://commons.wikimedia.org/wiki/File:Edinburgh_Castle_-_06.jpg
can contain a link to Wikidata, but this:
https://commons.wikimedia.org/w/index.php?title=Special%3ALinkSearch&ta…
does not find the link?
(not a "protocol spelling" issue; I checked the Labs database mirror, not a
trace of the link.)
Magnus