$ git clone -n https://src.fedoraproject.org/rpms/libzypp.git /var/lib/mock/f40-build-791549-137603/root/chroot_tmpdir/scmroot/libzypp
Cloning into '/var/lib/mock/f40-build-791549-137603/root/chroot_tmpdir/scmroot/libzypp'...
$ git fetch origin 404130b56dfeee425c9e910f02203411185f3099:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libzypp
 * [new ref]         404130b56dfeee425c9e910f02203411185f3099 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 404130b Update to 17.31.32