$ git clone -n https://src.fedoraproject.org/rpms/R-Rcpp.git /var/lib/mock/f41-build-side-1-3141183-39987/root/chroot_tmpdir/scmroot/R-Rcpp
Cloning into '/var/lib/mock/f41-build-side-1-3141183-39987/root/chroot_tmpdir/scmroot/R-Rcpp'...
$ git fetch origin 7c5a766041e0d8d127c91822264a5587e9f2d7ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-Rcpp
 * [new ref]         7c5a766041e0d8d127c91822264a5587e9f2d7ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c5a766 Require R >= 4.5.0 for new APIs (backport from upstream)