单独将复制价格的业务功能改动优选合并处理

yudao-module-product/yudao-module-product-core/src/main/java/cn/iocoder/yudao/module/product/service/product/impl/ProductPriceServiceImpl.java

@@ -3371,7 +3371,7 @@ public class ProductPriceServiceImpl extends AbstractService<ProductPriceMapper,
                             .collect(toList());
                     if (CollectionUtil.isNotEmpty(stepSpecialList)) {
                         Map<String, ProductPriceStepSpecialDO> stepSpecialMap = stepSpecialList.stream()
-                                .collect(Collectors.toMap(ProductPriceStepSpecialDO::getSpecialDictType, v -> v));
+                                .collect(Collectors.toMap(ProductPriceStepSpecialDO::getSpecialDictType, v -> v, (v1, v2) -> v2));
                         List<ProductPriceStepSpecialDO> dbStepSpecialList = stepSpecialGroupMap.get(dbStep.getId());
                         if (CollectionUtil.isEmpty(dbStepSpecialList)) continue;
                         for (ProductPriceStepSpecialDO dbStepSpecial : dbStepSpecialList) {