$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/libvpx.git /var/lib/mock/dist-an7-build-29001-15338/root/chroot_tmpdir/scmroot/libvpx
Cloning into '/var/lib/mock/dist-an7-build-29001-15338/root/chroot_tmpdir/scmroot/libvpx'...
$ git reset --hard origin/a7
HEAD is now at a1fc9f1 import libvpx-1.3.0-5.el7_0.src.rpm