I would love a way to duplicate a photo within Pixelmator Photo (perhaps via the Share Sheet?) After I finish an edit, I sometimes to decide to try something different with the same photo, I currently have to jump into Photos to do this.
An option to duplicate Original would be even better, removing the need to revert at the start of the editing process, but this should be an option, as you may want to duplicate the photo with the same adjustments you’ve just made, and then tweak from there.