修复用户优惠券失效状态更新问题

src/main/resources/mapper/coupon/TbCouponUserMapper.xml

@@ -22,7 +22,7 @@
     </select>
 
     <update id="updateExpiration">
-        update tb_coupon_user set status = 2 where date_format(expiration_time,'%Y-%m-%d %H:%i:%S') &lt; date_format(now(),'%Y-%m-%d %H:%i:%S')
+        update tb_coupon_user set status = 2 where status = 0 and date_format(expiration_time,'%Y-%m-%d %H:%i:%S') &lt; date_format(now(),'%Y-%m-%d %H:%i:%S')
     </update>
 
     <select id="selectCouponByUserId" resultType="com.sqx.modules.coupon.entity.TbCouponUser">