$ git clone -n https://gitee.com/src-anolis-os/tmux.git /var/lib/mock/dist-an23.5-build-540317-84716/root/chroot_tmpdir/scmroot/tmux
Cloning into '/var/lib/mock/dist-an23.5-build-540317-84716/root/chroot_tmpdir/scmroot/tmux'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/tmux
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c0ad38 Update to 3.6b