$ git clone -n https://gitee.com/lslwh/libunwind.git /var/lib/mock/dist-an23-build-334168-69650/root/chroot_tmpdir/scmroot/libunwind
Cloning into '/var/lib/mock/dist-an23-build-334168-69650/root/chroot_tmpdir/scmroot/libunwind'...
$ git fetch origin f695571d7d952d0d8491b7194562b5d0ac8746d7:KOJI_FETCH_HEAD
From https://gitee.com/lslwh/libunwind
 * [new ref]         f695571d7d952d0d8491b7194562b5d0ac8746d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f695571 Add port for Linux on LoongArch