$ git clone -n https://src.fedoraproject.org/rpms/graphviz.git /var/lib/mock/f40-build-2236707-53519/root/chroot_tmpdir/scmroot/graphviz
Cloning into '/var/lib/mock/f40-build-2236707-53519/root/chroot_tmpdir/scmroot/graphviz'...
$ git fetch origin cd7e6d22c10d41eef28a13dd4e5a1cf7b295420b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphviz
 * [new ref]         cd7e6d22c10d41eef28a13dd4e5a1cf7b295420b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd7e6d2 Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_3.3