$ git clone -n https://src.fedoraproject.org/rpms/julius.git /var/lib/mock/f38-build-side-42-init-devel-1171566-30612/root/chroot_tmpdir/scmroot/julius
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1171566-30612/root/chroot_tmpdir/scmroot/julius'...
$ git fetch origin aff55b78ea5cfb133f7795d94da7f21ae0dbf68a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/julius
 * [new ref]         aff55b78ea5cfb133f7795d94da7f21ae0dbf68a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aff55b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild