All section 10.4. About Deep Copy Subject Mode is duplication (copy paste) of Deep Copy Mode part of 10.1. About the Security Subsystem. One of them should be removed.
Russell, please evaluate the content spec and see if it needs reorganization for this issue.
Moving to ON_QA. The changes should be available for review on the documentation stage within an hour or so from this comment. http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/