$ git clone -n https://src.fedoraproject.org/rpms/R-future.git /var/lib/mock/f40-build-2090861-50225/root/chroot_tmpdir/scmroot/R-future
Cloning into '/var/lib/mock/f40-build-2090861-50225/root/chroot_tmpdir/scmroot/R-future'...
$ git fetch origin c59c41fd06fcf27579c82c1fdcd780789c06b830:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-future
 * [new ref]         c59c41fd06fcf27579c82c1fdcd780789c06b830 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c59c41f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild