$ git clone -n https://src.fedoraproject.org/rpms/python-lz4.git /var/lib/mock/f40-build-2204149-51949/root/chroot_tmpdir/scmroot/python-lz4
Cloning into '/var/lib/mock/f40-build-2204149-51949/root/chroot_tmpdir/scmroot/python-lz4'...
$ git fetch origin 10e1eecd406e36fb927516e6dca4612194208bbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-lz4
 * [new ref]         10e1eecd406e36fb927516e6dca4612194208bbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10e1eec update to 4.3.3