No, that's just a fork. The translation tool creates forks to be able to submit Translation updates as Pull Requests.
mailan What does it mean when a template is removed?
That can answer only the original author. In this case they deleted their github account and also requested the deletion of their DokuWiki forum account (which I did). Sometimes people lose interest and do drastic measurements like that.
Please note that the fork at the dokuwiki-translate account may vanish at any point. You might want to make your own backup (or maybe someone wants to take over development)