$ git clone -n https://src.fedoraproject.org/rpms/R-Rcpp.git /var/lib/mock/f38-build-721385-98533/root/chroot_tmpdir/scmroot/R-Rcpp
Cloning into '/var/lib/mock/f38-build-721385-98533/root/chroot_tmpdir/scmroot/R-Rcpp'...
$ git reset --hard 6a5dd7e4178283c4d5f1d306449a49d57eea2135
HEAD is now at 6a5dd7e Fix BuildRequires