$ git clone -n https://src.fedoraproject.org/rpms/userspace-rcu.git /var/lib/mock/f33-build-180021-45133/root/chroot_tmpdir/scmroot/userspace-rcu
Cloning into '/var/lib/mock/f33-build-180021-45133/root/chroot_tmpdir/scmroot/userspace-rcu'...
$ git reset --hard 8be8749431e921b1445c21844f9e441490db7a79
HEAD is now at 8be8749 New upstream release 0.12.0