$ git clone -n https://src.fedoraproject.org/rpms/json.git /var/lib/mock/f41-build-843001-161800/root/chroot_tmpdir/scmroot/json
Cloning into '/var/lib/mock/f41-build-843001-161800/root/chroot_tmpdir/scmroot/json'...
$ git fetch origin b2521d7918d602efa0c91a60938a4af7c554bbf4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/json
 * [new ref]         b2521d7918d602efa0c91a60938a4af7c554bbf4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2521d7 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild