Resource may not be required

ccm-cms/src/main/java/org/librecms/contentsection/ContentSectionImExporter.java

@@ -52,7 +52,6 @@ public class ContentSectionImExporter
     @Override
     protected Set<Class<? extends Exportable>> getRequiredEntities() {
         return Set.of(
-            Resource.class,
             ResourceType.class
         );
     }