HPCC-11491 Deletes causing subscription notifications to siblings

Node deletes in commits, were causing delete notifications to
unrelated subscriptions

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5922 from jakesmith/hpcc-11491

HPCC-11491 Deletes causing subscription notifications to siblings

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>