$ git clone -n https://src.fedoraproject.org/rpms/R-tufte.git /var/lib/mock/f38-build-side-42-init-devel-762386-27707/root/chroot_tmpdir/scmroot/R-tufte
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-762386-27707/root/chroot_tmpdir/scmroot/R-tufte'...
$ git fetch origin c10defc448ebd9576ed5c50948cb6c5215f17f30:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tufte
 * [new ref]         c10defc448ebd9576ed5c50948cb6c5215f17f30 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c10defc Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild