$ git clone -n https://src.fedoraproject.org/rpms/R-pak.git /var/lib/mock/f38-build-side-42-init-devel-950186-28779/root/chroot_tmpdir/scmroot/R-pak
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-950186-28779/root/chroot_tmpdir/scmroot/R-pak'...
$ git fetch origin 07285073365fa0b8e8ba3723edfe4cd911dbdf9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-pak
 * [new ref]         07285073365fa0b8e8ba3723edfe4cd911dbdf9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0728507 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild