update

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

@@ -2348,7 +2348,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
             }
 
             //退乐保费用
-            if (returnFeeDto.getMaintenanceFee() != null) {
+            if (returnFeeDto.getIsReturnMaintenanceFee()) {
                 StudentInstrument studentMaintenance = studentInstrumentDao.getStudentMaintenance(userId, musicGroupId);
                 if (returnFeeDto.getMaintenanceFee().compareTo(BigDecimal.ZERO) > 0) {
                     if (studentMaintenance == null) {