Merge pull request OpenAPITools#5 from Thecrazyskull/master

AbstractKotlinCodegen: always include data class body if model has pa…

Author: dzolnai

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractKotlinCodegen.java

@@ -337,7 +337,7 @@ public Map<String, Object> postProcessModels(Map<String, Object> objs) {
         for (Object _mo : models) {
             Map<String, Object> mo = (Map<String, Object>) _mo;
             CodegenModel cm = (CodegenModel) mo.get("model");
-            if (cm.getDiscriminator() != null) {
+            if (cm.getDiscriminator() != null || cm.getParent() != null) {
                 cm.vendorExtensions.put("x-has-data-class-body", true);
                 break;
             }