If I try to change Elytron default-authentication-context server ends in reload-required state.
However attribute default-authentication-context is marked as "restart-required" => "no-services" in model
According to documentation  if attribute is marked as "restart-required" => "no-services" no restart of service is necessary
no-services – Applying the operation to the runtime does not require the restart of any services. This value is the default if the restart-required descriptor is not present.