$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/openmpi.git /var/lib/mock/dist-an7-build-33958-16169/root/chroot_tmpdir/scmroot/openmpi
Cloning into '/var/lib/mock/dist-an7-build-33958-16169/root/chroot_tmpdir/scmroot/openmpi'...
$ git reset --hard origin/a7
HEAD is now at 69ec508 import openmpi-1.10.7-5.el7.src.rpm