This would be for after the OJS 3.2. release. The Reassign/Assign DOI functions just aren't clear enough, even for me and @AhemNason, to understand exactly what the implications are for pressing them. Likewise, the Clear DOI button function for any individual DOI. We click them, and then spend 5 minutes trying to figure out what happened and what we should expect. Just marking this for future targeted review.