HPCC-9331 - Missing activity logging if local graph

Test designed to suppress child query logging, was also
suppressing local only subgraph activity logging

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #4382 from jakesmith/hpcc-9331

HPCC-9331 - Missing activity logging if local graph

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>