update

businesscentral-core/src/main/java/cn/ibizlab/businesscentral/core/util/helper/EBSServiceImpl.java

@@ -9,7 +9,9 @@ import org.javers.core.diff.Diff;
 public class EBSServiceImpl<M extends BaseMapper<T>, T extends EntityMP> extends ServiceImpl<M, T> {
 
     public Mail_message_subtype getMessageSubType(T et, Diff diff){
-        return null ;
+        Mail_message_subtype message_subtype = new Mail_message_subtype();
+        message_subtype.setId(2l);
+        return message_subtype ;
     }
 
     public String getIrModel(){