Merge branch 'main' of github.com:dataease/dataease into main

backend/src/main/java/io/dataease/service/dataset/DataSetGroupService.java

@@ -139,10 +139,12 @@ public class DataSetGroupService {
     }
 
     public void getParent(List<DatasetGroup> list, DatasetGroup datasetGroup) {
+        if (ObjectUtils.isNotEmpty(datasetGroup)) {
             if (StringUtils.isNotEmpty(datasetGroup.getPid())) {
                 DatasetGroup d = datasetGroupMapper.selectByPrimaryKey(datasetGroup.getPid());
                 list.add(d);
                 getParent(list, d);
             }
         }
+    }
 }