$ git clone -n https://src.fedoraproject.org/rpms/R-jqr.git /var/lib/mock/f38-build-side-42-init-devel-680771-26737/root/chroot_tmpdir/scmroot/R-jqr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-680771-26737/root/chroot_tmpdir/scmroot/R-jqr'...
$ git fetch origin e260e20a7c1d46e900f11fb20cd2fc4b1429f6b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-jqr
 * [new ref]         e260e20a7c1d46e900f11fb20cd2fc4b1429f6b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e260e20 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild