$ git clone -n https://src.fedoraproject.org/rpms/par.git /var/lib/mock/f40-build-2014535-45982/root/chroot_tmpdir/scmroot/par
Cloning into '/var/lib/mock/f40-build-2014535-45982/root/chroot_tmpdir/scmroot/par'...
$ git fetch origin b9601e6577ca21bfa5c9ed8b6e8d3dd18077ee3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/par
 * [new ref]         b9601e6577ca21bfa5c9ed8b6e8d3dd18077ee3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9601e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild