Bastien, thank you. My bad: I tried to simply change the url in the .git/config but hadn't realised that the branch information etc. was different. I've cloned anew and everything is fine.
-- : Eric S Fraga via Emacs 28.0.50, Org release_9.4.6-637-gd70f28 : Latest paper written in org: https://arxiv.org/abs/2106.05096
