Something like this would be good. I was going to suggest a flag to download duplicates because of the photos/drive interface but didn’t bring it up. Because photos is ‘supposed to’ have duplicates, I found that I couldn’t download them because rclone would just complain about them. It would list them, of course, but since a single destination can’t deal with the duplicates (linux FS) that it would just politely tell me there was some.
It would be nice to have a flag to rename them in much the same way as ‘dedupe’ does. I could pass the flag of ‘skip|first|newest|oldest|rename’ and it would do that operation on the copy. In my use case, I didn’t want to dedupe, I wanted to download specific slices of a ‘duplicate’. I do like the idea in addition (as part of rename) to use either the hash or the ID though.