$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/userspace-rcu.git /var/lib/mock/dist-an7-build-35754-17062/root/chroot_tmpdir/scmroot/userspace-rcu
Cloning into '/var/lib/mock/dist-an7-build-35754-17062/root/chroot_tmpdir/scmroot/userspace-rcu'...
$ git reset --hard origin/a7
HEAD is now at 77d7f13 Import userspace-rcu-0.7.16-1.el7.src.rpm