"A link was made from File:Full-protection-shackle-double.svg to File:Full-protection-shackle-double.svg."
What link? I don't see it. Even if there was one, why should I care about a link of the image to itself? It is indeed listed though: https://commons.wikimedia.org/wiki/Special:WhatLinksHere/File:Full-protection-shackle-double.svg.