$ git clone -n https://src.fedoraproject.org/rpms/rpkg-util.git /var/lib/mock/f40-build-2321929-58616/root/chroot_tmpdir/scmroot/rpkg-util
Cloning into '/var/lib/mock/f40-build-2321929-58616/root/chroot_tmpdir/scmroot/rpkg-util'...
$ git fetch origin 0a0cc0b59e05ffe4dea4e3a9b125f12a92a84a99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpkg-util
 * [new ref]         0a0cc0b59e05ffe4dea4e3a9b125f12a92a84a99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a0cc0b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild