HPCC-10360 - Fix Thor roxiemem spill priority order

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5104 from jakesmith/hpcc-10360

HPCC-10360 - Fix Thor roxiemem spill priority order

Reviewed-By: Gavin Halliday <gavin.halliday@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>