fix 中途加入学生，免费领用乐器价格不符的bug

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

@@ -261,6 +261,9 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
                 if (orderDetail == null || orderDetail.getPrice() == null || orderDetail.getGoodsIdList() == null){
                     continue;
                 }
+                if(orderDetail.getType().equals(OrderDetailTypeEnum.MUSICAL) && musicOneSubjectClassPlan.getKitGroupPurchaseType().equals(KitGroupPurchaseTypeEnum.FREE) ){
+                    orderDetail.setPrice(BigDecimal.ZERO);
+                }
                 MusicGroupSubjectGoodsGroup musicGroupSubjectGoodsGroup = new MusicGroupSubjectGoodsGroup();
                 GoodsType goodsType = orderDetail.getType().equals(OrderDetailTypeEnum.MUSICAL) ? GoodsType.INSTRUMENT : GoodsType.ACCESSORIES;
                 musicGroupSubjectGoodsGroup.setType(goodsType);
@@ -406,6 +409,9 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
                 if (orderDetail == null || orderDetail.getPrice() == null || orderDetail.getGoodsIdList() == null){
                     continue;
                 }
+                if(orderDetail.getType().equals(OrderDetailTypeEnum.MUSICAL) && musicOneSubjectClassPlan.getKitGroupPurchaseType().equals(KitGroupPurchaseTypeEnum.FREE) ){
+                    orderDetail.setPrice(BigDecimal.ZERO);
+                }
                 MusicGroupSubjectGoodsGroup musicGroupSubjectGoodsGroup = new MusicGroupSubjectGoodsGroup();
                 GoodsType goodsType = orderDetail.getType().equals(OrderDetailTypeEnum.MUSICAL) ? GoodsType.INSTRUMENT : GoodsType.ACCESSORIES;
                 musicGroupSubjectGoodsGroup.setType(goodsType);