fix: 创建拼团活动时校验商品是否参与了其它活动

yudao-module-mall/yudao-module-promotion/src/main/java/cn/iocoder/yudao/module/promotion/service/combination/CombinationActivityServiceImpl.java

@@ -86,7 +86,7 @@ public class CombinationActivityServiceImpl implements CombinationActivityServic
             activityList.removeIf(item -> ObjectUtil.equal(item.getId(), activityId));
         }
         // 查找是否有其它活动，选择了该产品
-        List<CombinationActivityDO> matchActivityList = filterList(activityList, activity -> ObjectUtil.equal(activity.getId(), spuId));
+        List<CombinationActivityDO> matchActivityList = filterList(activityList, activity -> ObjectUtil.equal(activity.getSpuId(), spuId));
         if (CollUtil.isNotEmpty(matchActivityList)) {
             throw exception(COMBINATION_ACTIVITY_SPU_CONFLICTS);
         }