$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/ipxe.git /var/lib/mock/dist-an7-updates-build-42975-21665/root/chroot_tmpdir/scmroot/ipxe
Cloning into '/var/lib/mock/dist-an7-updates-build-42975-21665/root/chroot_tmpdir/scmroot/ipxe'...
$ git reset --hard origin/a7
HEAD is now at 14a36a1 update to ipxe-20180825-3.git133f4c.el7.src.rpm