Fix：5454 【商城小程序】购买商品，微信支付下单后未支付，待付款列表显示两条相同订单记录

(cherry picked from commit ea44413ac1)

pages/order/MyOrder/index.vue

@@ -54,7 +54,7 @@
     <view class="list v12-ma-0" style="padding: 0rpx 0 30rpx;">
       <view
         v-for="(order, orderListIndex) in orderList"
-        :key="orderListIndex"
+        :key="order.orderId || orderListIndex"
         class="item"
       >
         <view
@@ -725,7 +725,8 @@ export default {
       showDatePicker: false,
       dateRange: [],
       userLatitude: null,
-      userLongitude: null
+      userLongitude: null,
+      orderListRequestId: 0
     }
   },
   components: {
@@ -984,9 +985,7 @@ export default {
     },
     delOrder(order) {
       delOrderHandle(order.orderId).then(() => {
-        this.page = 1
-        this.orderList = [];
-        this.getOrderListReq()
+        this.changeType()
       })
     },
     goStore(order) {
@@ -1260,6 +1259,23 @@ export default {
     reload() {
       this.changeType(this.type)
     },
+    normalizeOrderList(list = []) {
+      const orderKeySet = new Set()
+      return list.reduce((result, item) => {
+        const orderKey = item && (item.orderId || item.id)
+        if (orderKey && orderKeySet.has(orderKey)) {
+          return result
+        }
+        if (orderKey) {
+          orderKeySet.add(orderKey)
+        }
+        result.push({
+          ...item,
+          showMore: false
+        })
+        return result
+      }, [])
+    },
     tabChange(item) {
       this.type = item.index
       this.$yroute.query.type = this.type
@@ -1300,6 +1316,7 @@ export default {
       })
     },
     changeType() {
+      this.orderListRequestId += 1
       this.orderList = []
       this.page = 1
       this.loaded = false
@@ -1308,7 +1325,8 @@ export default {
     },
     getOrderListReq() {
       if (this.loading || this.loaded) return
-      // this.loading = true
+      this.loading = true
+      const currentRequestId = this.orderListRequestId
       uni.showLoading({
         mask: true,
       })
@@ -1335,17 +1353,18 @@ export default {
         keyword,
         orderType
       }).then(res => {
-        this.orderList = this.orderList.concat(res.data)
-        if (this.orderList.length > 0) {
-          this.orderList.forEach(item => {
-            item.showMore = false;
-          })
+        if (currentRequestId !== this.orderListRequestId) {
+          return
         }
+        const nextOrderList = page === 1 ? res.data : this.orderList.concat(res.data)
+        this.orderList = this.normalizeOrderList(nextOrderList)
         this.updateOrderDistances()
-        this.page++;
+        this.page = page + 1
         this.loaded = res.data.length < this.limit
-        this.loading = false
       }).finally(() => {
+        if (currentRequestId !== this.orderListRequestId) {
+          return
+        }
         this.loading = false
         uni.hideLoading()
       });