$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/ovmf.git /var/lib/mock/dist-an7-build-29420-15390/root/chroot_tmpdir/scmroot/ovmf
Cloning into '/var/lib/mock/dist-an7-build-29420-15390/root/chroot_tmpdir/scmroot/ovmf'...
$ git reset --hard origin/a7
HEAD is now at b0c52be import ovmf-20180508-6.gitee3198e672e2.el7.src.rpm