https://www.photools.com/help/imatch/search_basics.htm
Under "Finding Duplicate Files", proposed change:
| Copies | IMatch only considers only files as copies duplicates when they are binary identical, bit by bit. This includes all metadata and other data in the file. |
Thanks. I have incorporated your suggestion for the next help update.
Note: There is a feedback link at the bottom of each help page. Clicking it opens your email client with the path of the help page and some other information already filled in. Emails I receive that way automatically go into a "help update" queue I process one a week or so.