$ git clone -n https://src.fedoraproject.org/rpms/R-lokern.git /var/lib/mock/f33-build-341704-58671/root/chroot_tmpdir/scmroot/R-lokern
Cloning into '/var/lib/mock/f33-build-341704-58671/root/chroot_tmpdir/scmroot/R-lokern'...
$ git reset --hard b19d7fefe36d67f5aacf7ff3ced8b458b751001f
HEAD is now at b19d7fe - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild