$ git clone -n https://src.fedoraproject.org/rpms/R-S4Vectors.git /var/lib/mock/f40-build-2270411-54814/root/chroot_tmpdir/scmroot/R-S4Vectors
Cloning into '/var/lib/mock/f40-build-2270411-54814/root/chroot_tmpdir/scmroot/R-S4Vectors'...
$ git fetch origin b0df381047051654f13af38f8219a4e2b6216522:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-S4Vectors
 * [new ref]         b0df381047051654f13af38f8219a4e2b6216522 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0df381 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild