$ git clone -n https://src.fedoraproject.org/rpms/synfig.git /var/lib/mock/f40-build-1512062-23908/root/chroot_tmpdir/scmroot/synfig
Cloning into '/var/lib/mock/f40-build-1512062-23908/root/chroot_tmpdir/scmroot/synfig'...
$ git fetch origin 62f359e206b14eaf0256ca864adc81931c4b45c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/synfig
 * [new ref]         62f359e206b14eaf0256ca864adc81931c4b45c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62f359e Add ppc64le builds