$ git clone -n https://src.fedoraproject.org/rpms/kgraphviewer.git /var/lib/mock/f40-build-2146668-50889/root/chroot_tmpdir/scmroot/kgraphviewer
Cloning into '/var/lib/mock/f40-build-2146668-50889/root/chroot_tmpdir/scmroot/kgraphviewer'...
$ git fetch origin 43a1a6b40336c24276c744a495cc00ceeeb665d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgraphviewer
 * [new ref]         43a1a6b40336c24276c744a495cc00ceeeb665d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43a1a6b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild