$ git clone -n https://src.fedoraproject.org/rpms/R-desc.git /var/lib/mock/f41-build-850771-165638/root/chroot_tmpdir/scmroot/R-desc
Cloning into '/var/lib/mock/f41-build-850771-165638/root/chroot_tmpdir/scmroot/R-desc'...
$ git fetch origin 2994e7ef07947dea8619d42d50a1409cb0469ac8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-desc
 * [new ref]         2994e7ef07947dea8619d42d50a1409cb0469ac8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2994e7e Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild