Bug 445696

If you're viewing unconfirmed faces for a person and you're doing a bunch of them at some point you're going to make a mistake and confirm a face you shouldn't have. Even if you realize you've done that immediately, it's now impossible to find the photo you just confirmed. It immediately disappears and there's no indication in the UI of what its name was and there's no "Undo" command or way to view recently modified images so you can find it and fix it.

I've restored to going into the filesystem and using `find` to find recently modified files in my pictures directory and sorting them by mod time to identify the most recent one and then searching for its filename in the Search tag in digikam so that I can undo it, but honestly that's a ridiculous workflow.

Either there should be an undo, or there should be a way to view recently modified images in order from most to least recent.