HPCC-9132 Improve spotting lightweight denormalize

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #4326 from ghalliday/issue9132

HPCC-9132 Improve spotting lightweight denormalize

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>