$ git clone -n https://src.fedoraproject.org/rpms/haruna.git /var/lib/mock/f42-build-side-1-3522186-46166/root/chroot_tmpdir/scmroot/haruna
Cloning into '/var/lib/mock/f42-build-side-1-3522186-46166/root/chroot_tmpdir/scmroot/haruna'...
$ git fetch origin d8a4675bf3cd556977c31c969fed29f9d507614f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haruna
 * [new ref]         d8a4675bf3cd556977c31c969fed29f9d507614f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8a4675 version 1.4.0