$ git clone -n https://gitee.com/src-opencloudos-rpms/tmux.git /var/lib/mock/dist-oc9-build-61408-16463/root/chroot_tmpdir/scmroot/tmux
Cloning into '/var/lib/mock/dist-oc9-build-61408-16463/root/chroot_tmpdir/scmroot/tmux'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tmux
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f9f7a9 import tmux-3.3a-4.tl4