OO-4971 fix wrong default enabled module

src/main/java/org/olat/modules/contacttracing/ui/ContactTracingConfigurationController.java

@@ -478,11 +478,13 @@ public class ContactTracingConfigurationController extends FormBasicController {
     private void initVelocityContainers() {
         if (contactTracingModule.isEnabled()) {
             retentionPeriodEl.setVisible(true);
+            allowAnonymousRegistrationEl.setVisible(true);
             defaultDurationEl.setVisible(true);
             questionnaireConfig.setVisible(true);
             messagesConfig.setVisible(true);
         } else {
             retentionPeriodEl.setVisible(false);
+            allowAnonymousRegistrationEl.setVisible(false);
             defaultDurationEl.setVisible(false);
             questionnaireConfig.setVisible(false);
             messagesConfig.setVisible(false);

src/main/resources/serviceconfig/olat.properties

@@ -1868,7 +1868,7 @@ impressum.contact.mail=${supportemail}
 ###############################################################################
 # Options for the contact tracing
 ###############################################################################
-contact.tracing.enabled=on
+contact.tracing.enabled=false
 # Retention period in days
 contact.tracing.retention.period=40
 # Default duration of stay in minutes