$ git clone -n https://src.fedoraproject.org/rpms/R-purrr.git /var/lib/mock/f33-build-536255-64958/root/chroot_tmpdir/scmroot/R-purrr
Cloning into '/var/lib/mock/f33-build-536255-64958/root/chroot_tmpdir/scmroot/R-purrr'...
$ git reset --hard e1a6e36a6a29060329762225c7813eba6192f335
HEAD is now at e1a6e36 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild