Hardlink files found by name

[Key-Snapper]

As I understand the help, I have to select all dupes found and the first of each group is the "original". No problem if the files are real dupes, found by hash. But I have a folder A with images, some of which are hard-linked to folder B or C with additional images. Now I have re-tagged folder A and the hard-link is broken. I want to update the files in B and C. If I search by name, how can I be sure that folder A is the first entry in a group? Shouldn't files in a reference folder be the originals that are hard-linked to other identically named files?