update 乐器更换，更新乐保信息

mec-biz/src/main/java/com/ym/mec/biz/service/impl/SubjectChangeServiceImpl.java

@@ -302,6 +302,8 @@ public class SubjectChangeServiceImpl extends BaseServiceImpl<Integer, SubjectCh
                 //添加新订单
                 this.addSellOrder(studentPaymentOrder.getId(), subjectChange.getMusicGroupId(), goodsIdList, BigDecimal.ZERO, BigDecimal.ZERO, subjectChange.getKitGroupPurchaseType());
             }
+            //乐保处理
+            studentInstrumentService.subjectChangeUpdateInstrument(subjectChange);
         }
         return subjectChange;
     }