Fix：4664 【旅居商城小程序】团购选择其他优惠券无法生效，选择以后又自动改回默认的优惠券了

pkg_user/views/gift/gift.vue

@@ -251,7 +251,7 @@ export default {
       this.couponIndex = this.couponList['usable']?.findIndex(item => item.id === +value)
       this.couponTitle = this.couponList['usable']?.[this.couponIndex]?.couponTitle
       if(this.isGroupBuy) {
-        await this.computedTravelGroupPrice(true)
+        await this.computedTravelGroupPrice(false)
       } else {
         await this.computedPrice(this.goodsInfo.cartNum, 1)
       }
@@ -333,7 +333,11 @@ export default {
       }
       this.couponId = item.id
       this.couponTitle = item.couponTitle
-      this.computedPrice(this.goodsInfo.cartNum, 1)
+      if(this.isGroupBuy) {
+        this.computedTravelGroupPrice(false)
+      } else {
+        this.computedPrice(this.goodsInfo.cartNum, 1)
+      }
     },
     makeAgain() {
       const params = {