$ git clone -n https://src.fedoraproject.org/rpms/libsbml.git /var/lib/mock/f40-build-2087517-50157/root/chroot_tmpdir/scmroot/libsbml
Cloning into '/var/lib/mock/f40-build-2087517-50157/root/chroot_tmpdir/scmroot/libsbml'...
$ git fetch origin a7c9879d1470be3f2abef67561dce523ac53e28c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsbml
 * [new ref]         a7c9879d1470be3f2abef67561dce523ac53e28c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7c9879 Version 5.20.2