$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/mrtg.git /var/lib/mock/dist-an7-build-29239-15366/root/chroot_tmpdir/scmroot/mrtg
Cloning into '/var/lib/mock/dist-an7-build-29239-15366/root/chroot_tmpdir/scmroot/mrtg'...
$ git reset --hard origin/a7
HEAD is now at 40830d2 import mrtg-2.17.4-11.el7.src.rpm