Bug 33335: (QA follow-up) Polishing and comments

Bug 33335: (QA follow-up) Polishing and comments

Just send the codes and descriptions only to client.
Adding a few comments to the reduce construction.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 020bc275b05ac74bacf52325ac2933d56e78ce32)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
(cherry picked from commit 7eabf447d1df66c31743c1160e3d83b771ea1b54)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>