In 1.2 users can now include a custom Author_Group.xml instead of having to rely on the default one created by the builder (or overriding manually when building).

To use a custom author group, the user must either create the create the topic via the UI or Content Spec.

If creating the topic in the UI the user must ensure that the topic is tagged with the "Author Group" topic type tag.

If creating the topic via the content spec, then this is similar to Revision History or Legal Notice topics. The syntax you will need is shown below and should go in the metadata section of the content spec.

    Author Group = [N, Author Group]

Once the topic has been created then it can be included in the content spec as above but instead of the "N, Author Group" content you'd just include the ID.

See https://bugzilla.redhat.com/show_bug.cgi?id=981118#c16 for other details. Also this relates to this doc bug as well: https://bugzilla.redhat.com/show_bug.cgi?id=981118982076