$ git clone -n https://src.fedoraproject.org/rpms/R-DT.git /var/lib/mock/f38-build-side-42-init-devel-903307-28615/root/chroot_tmpdir/scmroot/R-DT
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-903307-28615/root/chroot_tmpdir/scmroot/R-DT'...
$ git fetch origin 32a7f2e1e9f7a12b309c5fc13319dc0badce8ba6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-DT
 * [new ref]         32a7f2e1e9f7a12b309c5fc13319dc0badce8ba6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32a7f2e Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild