$ git clone -n https://src.fedoraproject.org/rpms/cronolog.git /var/lib/mock/f45-build-5351-339/root/chroot_tmpdir/scmroot/cronolog
Cloning into '/var/lib/mock/f45-build-5351-339/root/chroot_tmpdir/scmroot/cronolog'...
$ git fetch origin bd957d0c60175806bf4b1b81a24b1934476fcc16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cronolog
 * [new ref]         bd957d0c60175806bf4b1b81a24b1934476fcc16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd957d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild