$ git clone -n https://src.fedoraproject.org/rpms/ricochet.git /var/lib/mock/f45-build-34518-687/root/chroot_tmpdir/scmroot/ricochet
Cloning into '/var/lib/mock/f45-build-34518-687/root/chroot_tmpdir/scmroot/ricochet'...
$ git fetch origin 268f57e9c0aebcfa90e614b8b9b3e0c99892ebe8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ricochet
 * [new ref]         268f57e9c0aebcfa90e614b8b9b3e0c99892ebe8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 268f57e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild