$ git clone -n https://src.fedoraproject.org/rpms/python-sphinxcontrib-jsmath.git /var/lib/mock/f40-build-2401477-60555/root/chroot_tmpdir/scmroot/python-sphinxcontrib-jsmath
Cloning into '/var/lib/mock/f40-build-2401477-60555/root/chroot_tmpdir/scmroot/python-sphinxcontrib-jsmath'...
$ git fetch origin 18bc5edd5755c494382fc4df41d10721f4e7d64c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sphinxcontrib-jsmath
 * [new ref]         18bc5edd5755c494382fc4df41d10721f4e7d64c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18bc5ed Orphaned for 6+ weeks