$ git clone -n https://src.fedoraproject.org/rpms/userspace-rcu.git /var/lib/mock/f33-build-296438-55711/root/chroot_tmpdir/scmroot/userspace-rcu
Cloning into '/var/lib/mock/f33-build-296438-55711/root/chroot_tmpdir/scmroot/userspace-rcu'...
$ git reset --hard cbfcef6c58ebb8ef26144bc2fa4893e003516a2e
HEAD is now at cbfcef6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild