[DDF] When the domain controller and host controllers are different versions, the DC must be the higher version. A newer HC

When the domain controller and host controllers are different versions, the DC must be the higher version. A newer HC connecting to an older DC is not supported.

Section 6.2 also has this problem.

Reported by: rhn-support-dereed

https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.4/html/using_the_jboss_server_migration_tool/migrating_jboss_eap_7_3_configurations_to_jboss_eap_7_4#annotations:d6ef3d7a-9020-4cde-b703-6f6ad5a12f3d