$ git clone -n https://src.fedoraproject.org/rpms/scdoc.git /var/lib/mock/f45-build-35634-698/root/chroot_tmpdir/scmroot/scdoc
Cloning into '/var/lib/mock/f45-build-35634-698/root/chroot_tmpdir/scmroot/scdoc'...
$ git fetch origin 0567ac6dcdf5020ff8a253c863b7a19707465c12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scdoc
 * [new ref]         0567ac6dcdf5020ff8a253c863b7a19707465c12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0567ac6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild