$ git clone -n https://src.fedoraproject.org/rpms/gearbox.git /var/lib/mock/f45-build-47365-867/root/chroot_tmpdir/scmroot/gearbox
Cloning into '/var/lib/mock/f45-build-47365-867/root/chroot_tmpdir/scmroot/gearbox'...
$ git fetch origin b2c403b0fce1e9a706d29c30a1ea1f99949a3b73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gearbox
 * [new ref]         b2c403b0fce1e9a706d29c30a1ea1f99949a3b73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2c403b Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild