$ git clone -n https://src.fedoraproject.org/rpms/prunerepo.git /var/lib/mock/f41-build-side-2-python-2726076-30762/root/chroot_tmpdir/scmroot/prunerepo
Cloning into '/var/lib/mock/f41-build-side-2-python-2726076-30762/root/chroot_tmpdir/scmroot/prunerepo'...
$ git fetch origin e6ccdebf640e240a166afc9b46b9599e2347de4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/prunerepo
 * [new ref]         e6ccdebf640e240a166afc9b46b9599e2347de4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6ccdeb Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild