$ git clone -n https://src.fedoraproject.org/rpms/bc.git /var/lib/mock/f40-build-2335603-59387/root/chroot_tmpdir/scmroot/bc
Cloning into '/var/lib/mock/f40-build-2335603-59387/root/chroot_tmpdir/scmroot/bc'...
$ git fetch origin a0510c2628bc33ff2da379d8d68503e620d9ba84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bc
 * [new ref]         a0510c2628bc33ff2da379d8d68503e620d9ba84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0510c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild