$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/mpich.git /var/lib/mock/dist-an7-build-29228-15365/root/chroot_tmpdir/scmroot/mpich
Cloning into '/var/lib/mock/dist-an7-build-29228-15365/root/chroot_tmpdir/scmroot/mpich'...
$ git reset --hard origin/a7
HEAD is now at 82e2bcc import mpich-3.2-2.el7.src.rpm