[7.0] Migration Guide - Bad wording in JBoss Web mapping table

This issue was reported by hpeters_jira on the translation team.

I was hoping you could help me understand one particular sentence from the EAP 7.0 Migration Guide that I am currently translating (I've been told you where the author of that particular section)

See:
https://access.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/version-7.0/migration-guide/#migrate_map_servlet_container_and_connector_system_properties

Could you please clarify the sentence "It does not override the automatically generated value when using ha read with the standalone-ha.xml configuration.", particularly the "ha read" part.
Does that mean when using the HA profile read from/used with the standalone-ha.xml, or something along those lines? Or is "ha read" an attribute in itself?