$ git clone -n https://src.fedoraproject.org/rpms/R-dplyr.git /var/lib/mock/f40-build-789555-135900/root/chroot_tmpdir/scmroot/R-dplyr
Cloning into '/var/lib/mock/f40-build-789555-135900/root/chroot_tmpdir/scmroot/R-dplyr'...
$ git fetch origin b2c70dd2d3a075e252e2debf80e8539c764bff55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-dplyr
 * [new ref]         b2c70dd2d3a075e252e2debf80e8539c764bff55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2c70dd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild