$ git clone -n https://gitee.com/wenyuzifang/tmux.git /var/lib/mock/dist-an23-build-467275-73998/root/chroot_tmpdir/scmroot/tmux
Cloning into '/var/lib/mock/dist-an23-build-467275-73998/root/chroot_tmpdir/scmroot/tmux'...
$ git fetch origin 220519e35e8449daf6ba4520d2508428c359a8bf:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tmux
 * [new ref]         220519e35e8449daf6ba4520d2508428c359a8bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 220519e Update code from upstream