微信小程序端uni-list、uni-list-item使用v-for循环渲染报错

[CaoMeiYouRen]

问题描述
[问题描述：尽可能简洁清晰地把问题描述清楚]
微信小程序端uni-list、uni-list-item使用v-for循环渲染报错
但是不使用v-for循环渲染不报错。
其他端正常【H5、Android下通过】
复现步骤
[复现问题的步骤]
demo如下

<template>
  <view>
      <!-- 在v-for循环中使用会报错 -->
       <uni-list>
            <uni-list-item
                v-for="(item, i) in list"
                :key="i"
                :title="item.title"
                :show-extra-icon="true"
                :extra-icon="{ color: '#a8a8a8', size: '22', type: item.icon }"
                @click="item.go"
            ></uni-list-item>
        </uni-list>
        
        <!-- 不在v-for循环中使用不报错 -->
       <uni-list>
            <uni-list-item
                class="todo-list-item"
                :title="list[0].title"
                :show-extra-icon="true"
                :extra-icon="{ color: '#a8a8a8', size: '22', type: list[0].icon }"
                @click="list[0].go"
            ></uni-list-item>
            <uni-list-item
                class="todo-list-item"
                :title="list[1].title"
                :show-extra-icon="true"
                :extra-icon="{ color: '#a8a8a8', size: '22', type: list[1].icon }"
                @click="list[1].go"
            ></uni-list-item>
            <uni-list-item
                class="todo-list-item"
                :title="list[2].title"
                :show-extra-icon="true"
                :extra-icon="{ color: '#a8a8a8', size: '22', type: list[2].icon }"
                @click="list[2].go"
            ></uni-list-item>
        </uni-list>
    </view>
</template>

<script>
export default {
    props: {},
    data() {
        return {
            list: [
                {
                    title: '帐号管理',
                    icon: 'gear',
                    go() {
                        uni.navigateTo({
                            url: '../setting/setting'
                        });
                    }
                },
                {
                    title: '帮助与反馈',
                    icon: 'help',
                    go() {
                        uni.navigateTo({
                            url: '../help/help'
                        });
                    }
                },
                {
                    title: '关于应用',
                    icon: 'info',
                    go() {
                        uni.navigateTo({
                            url: '../about/about'
                        });
                    }
                }
            ]
        };
    },
    methods: {},
    computed: {},
    watch: {},
    onLoad() {}
};
</script>

<style lang="scss"></style>

[或者可以直接贴源代码]

预期结果
[使用简洁清晰的语言描述你希望生效的预期结果]
不报错
实际结果
[这里请贴上你的报错截图或文字]
VM201:1 [Vue warn]: Property or method "item" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

(found in pages/my-list/my-list)
console.error @ VM201:1
warn @ mp.runtime.esm.js:613
warnNonPresent @ mp.runtime.esm.js:2026
get @ mp.runtime.esm.js:2080
render @ my-list.vue?a76d:14
Vue._render @ mp.runtime.esm.js:3565
updateComponent @ mp.runtime.esm.js:5696
get @ mp.runtime.esm.js:4425
Watcher @ mp.runtime.esm.js:4415
mountComponent$1 @ mp.runtime.esm.js:5702
Vue.$mount @ mp.runtime.esm.js:6019

VM201:1 TypeError: Cannot read property 'icon' of undefined
at Proxy.render (my-list.vue?a76d:17)
at VueComponent.Vue._render (mp.runtime.esm.js:3565)
at VueComponent.updateComponent (mp.runtime.esm.js:5696)
at Watcher.get (mp.runtime.esm.js:4425)
at new Watcher (mp.runtime.esm.js:4415)
at mountComponent$1 (mp.runtime.esm.js:5702)
at VueComponent.Vue.$mount (mp.runtime.esm.js:6019)
at ve.attached (index.js:1364)

系统信息:

• 发行平台: [如 微信小程序、H5平台、5+ App等]
  微信小程序
• 操作系统 [如 iOS 12.1.2、Android 7.0]
  小程序开发者工具
• HBuilderX版本 [如使用HBuilderX，则需提供 HBuilderX 版本号]
  2.6.5.20200314
• uni-app版本 [如使用Vue-cli创建/运行项目，则提供npm run info的运行结果]
• 设备信息 [如 iPhone8 Plus]

补充信息
[可选]
[根据你的分析，出现这个问题的原因可能在哪里？]
原因可能是我把v-for放在了uni-list-item上。但是在其他端都通过了所以这应该还是bug

[dcloudhdx]

微信小程序目前不支持这种复杂写法，可以将 extra-icon 数据封装成一个值，不要写成 {}