$ git clone -n https://src.fedoraproject.org/rpms/libell.git /var/lib/mock/f41-build-847427-163983/root/chroot_tmpdir/scmroot/libell
Cloning into '/var/lib/mock/f41-build-847427-163983/root/chroot_tmpdir/scmroot/libell'...
$ git fetch origin e742923ea0cac0650c12a2f55558d1afa6cb11fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libell
 * [new ref]         e742923ea0cac0650c12a2f55558d1afa6cb11fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e742923 Update to 0.68