$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/libunwind.git /var/lib/mock/dist-an7-build-28959-15331/root/chroot_tmpdir/scmroot/libunwind
Cloning into '/var/lib/mock/dist-an7-build-28959-15331/root/chroot_tmpdir/scmroot/libunwind'...
$ git reset --hard origin/a7
HEAD is now at 5a58d89 import libunwind-1.2-2.el7.src.rpm