$ git clone -n https://src.fedoraproject.org/rpms/black-hole-solver.git /var/lib/mock/f40-build-2274642-55020/root/chroot_tmpdir/scmroot/black-hole-solver
Cloning into '/var/lib/mock/f40-build-2274642-55020/root/chroot_tmpdir/scmroot/black-hole-solver'...
$ git fetch origin c58cac58d0de12510872709f280cb887193a0ad0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/black-hole-solver
 * [new ref]         c58cac58d0de12510872709f280cb887193a0ad0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c58cac5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild