Yeah, because on line 242 - https://github.com/paulrobinson/www.jboss.org/blob/master-DEVELOPER-282_Create_indexer_for_customer_portal_and_add_to_developer_materials/javascripts/developer-materials.js#L242 - we do actually check to see if contributors has some data in it before outputting the contributor info.

Note that this whole approach is wrong, contributors is just the data we push to the dcp before it gets normalised. We should only be using sys_contributors. We have a bunch of changes to make around this...