$ git clone -n https://src.fedoraproject.org/rpms/ballbuster.git /var/lib/mock/f40-build-2335507-59381/root/chroot_tmpdir/scmroot/ballbuster
Cloning into '/var/lib/mock/f40-build-2335507-59381/root/chroot_tmpdir/scmroot/ballbuster'...
$ git fetch origin 448206ae9f4f91d3b7c761fbecb762970e1badfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ballbuster
 * [new ref]         448206ae9f4f91d3b7c761fbecb762970e1badfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 448206a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild