$ git clone -n https://src.fedoraproject.org/rpms/python-libtmux.git /var/lib/mock/f40-build-2231502-53289/root/chroot_tmpdir/scmroot/python-libtmux
Cloning into '/var/lib/mock/f40-build-2231502-53289/root/chroot_tmpdir/scmroot/python-libtmux'...
$ git fetch origin 804819ca416724ea8ae45c2a1cf820e39113b98b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-libtmux
 * [new ref]         804819ca416724ea8ae45c2a1cf820e39113b98b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 804819c Update to 0.23.1