$ git clone -n https://src.fedoraproject.org/rpms/klavaro.git /var/lib/mock/f40-build-746035-112345/root/chroot_tmpdir/scmroot/klavaro
Cloning into '/var/lib/mock/f40-build-746035-112345/root/chroot_tmpdir/scmroot/klavaro'...
$ git fetch origin 80ec629c686859eddc380a32fc98cbd6c1f8910a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klavaro
 * [new ref]         80ec629c686859eddc380a32fc98cbd6c1f8910a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80ec629 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild