$ git clone -n https://src.fedoraproject.org/rpms/jsch.git /var/lib/mock/f40-build-2199527-51748/root/chroot_tmpdir/scmroot/jsch
Cloning into '/var/lib/mock/f40-build-2199527-51748/root/chroot_tmpdir/scmroot/jsch'...
$ git fetch origin 363fc8ddbe72a644cbbfd0313bd15e458bca5e9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jsch
 * [new ref]         363fc8ddbe72a644cbbfd0313bd15e458bca5e9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 363fc8d Update javapackages test plan to f40