$ git clone -n https://src.fedoraproject.org/rpms/graphviz.git /var/lib/mock/f40-build-1126464-20285/root/chroot_tmpdir/scmroot/graphviz
Cloning into '/var/lib/mock/f40-build-1126464-20285/root/chroot_tmpdir/scmroot/graphviz'...
$ git fetch origin bd454773212204e6f3e421fa2ce0354e8730f630:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphviz
 * [new ref]         bd454773212204e6f3e421fa2ce0354e8730f630 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd45477 Revert wrong push (apologies)