$ git clone -n https://src.fedoraproject.org/rpms/R-Rcpp.git /var/lib/mock/f31-build-73733-31023/root/chroot_tmpdir/scmroot/R-Rcpp
Cloning into '/var/lib/mock/f31-build-73733-31023/root/chroot_tmpdir/scmroot/R-Rcpp'...
$ git reset --hard e4be604402025b437ce46e3388359ab81adbc37e
HEAD is now at e4be604 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild