!764 返回使用过优惠券逻辑---->状态字段取错了

Merge pull request !764 from Ai3_刘小龙/N/A

yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/coupon/CouponServiceImpl.java

@@ -111,7 +111,7 @@ public class CouponServiceImpl implements CouponService {
             throw exception(COUPON_NOT_EXISTS);
         }
         // 校验状态
-        if (ObjectUtil.notEqual(coupon.getTemplateId(), CouponStatusEnum.USED.getStatus())) {
+        if (ObjectUtil.notEqual(coupon.getStatus(), CouponStatusEnum.USED.getStatus())) {
             throw exception(COUPON_STATUS_NOT_USED);
         }