$ git clone -n https://gitee.com/fundawang/libcxx.git /var/lib/mock/dist-an23-build-294004-65200/root/chroot_tmpdir/scmroot/libcxx
Cloning into '/var/lib/mock/dist-an23-build-294004-65200/root/chroot_tmpdir/scmroot/libcxx'...
$ git reset --hard b35eac6dc5ebddc0c3e174d0cb63b8e40877638f
HEAD is now at b35eac6 disable
$ git lfs pull