better-scroll弹层中Tab切换之后滑动失效的Bug

需求说明：
在Vue列表页面使用better-scroll滑动，并且，在子元素中创建弹层，弹层中也使用better-scroll。

问题说明：
1、弹层中滑动，父级也跟着滑动；
2、第一次打开弹层，子元素可以滑动，切换Tab之后滑动失效；

<template><div ref="wrapper"><!--列表滚动--><div ref="inWrapper"><van-search v-model="key" @search="onSearch" label="关键字"/><van-dropdown-menu><van-dropdown-item @change="onChange" v-model="menu" :options="option"/></van-dropdown-menu><van-cell-group v-for="(item,i) in items" :key="i"><van-cell @click="onCell(item[0])" :title="item[1].title" :value="item[1].value"/></van-cell-group></div><!--弹出框start--><van-action-sheet v-model="action" style="height: 80%"><!--Tab切换--><template #description><van-tabs color="#3296fa" @click="onTabs"><van-tab title="企业" name="1"></van-tab><van-tab title="个人" name="2"></van-tab></van-tabs></template><div ref="sheetWrapper"><!--弹层滚动--><div ref="inSheetWrapper"><!--搜索框--><van-search v-model="sheetKey" @search="onSearch" label="关键字"/><!--用户列表--><van-cell-group ref="cell" v-for="(d,j) in list" :key="j"><van-cell @click="onClick(d)" :border="true" is-link><template #title><span class="title-icon">用户</span><span class="title-text">{{d.title}}</span></template></van-cell></van-cell-group></div></div></van-action-sheet><!--弹出框end--></div>
</template>

解决办法，请看注释：

export default {name: 'reformList',data() {return {cHeight: 0,sHeight: 0,scroll: null,scroll2: null,menu: null,key: '',items: [],params: {current: 1,size: 20,},option: [{value: '', text: '全部'},{value: 1, text: '待整改'},{value: 2, text: '待复查'},{value: 3, text: '已复查'},],action: false,sheetKey: '',list: [],}},watch: {cHeight: {<!--列表滚动-->handler: function (height) {if (height) {this.$nextTick(() => {this.$refs.inWrapper.style.minHeight = height + 'px';this.scroll && this.scroll.refresh();})}}},sHeight: {handler: function (height) {if (height) {this.$nextTick(() => {this.$refs.inSheetWrapper.style.minHeight = height + 55 + 'px';this.scroll2 && this.scroll2.refresh();})}}},action: {handler: function (open) {if (open) {this.$nextTick(() => {this.scroll2 = this.$BScroll2();})}}}},mounted() {this.scroll = this.$BScroll();this.$nextTick(() => {this.refresh();this.getUser();});},methods: {onSearch(key) {console.log(key)},onChange(menu) {console.log(menu)},onCell(item) {console.log(item)},onTabs(num) {if (num) {this.getUser();} else {this.getUnit();}},onClick(item) {console.log(item)},$BScroll() {let innerHeight = document.documentElement.clientHeight;this.$refs.wrapper.style.height = innerHeight + 'px';this.$refs.inWrapper.style.minHeight = '100vh';return this.BScroll(this.$refs.wrapper);},$BScroll2() {let sheetScroll = null;if (!this.scroll2) {this.$nextTick(() => {sheetScroll = this.BScroll(this.$refs.sheetWrapper, {stopPropagation: true,// 在弹层中滚动，避免影响父级滑动bindToWrapper: true,  // Tab切换之后，允许继续滑动});});} else {this.$nextTick(() => {this.scroll2.refresh();});}return sheetScroll;},refresh() {this.$api.getReformQuery(this.params).then(res => {const {code, data} = res;if (res && code === 200 && data && data.records && data.records.length) {this.list = this.list.concat(data.records);}<!--列表滚动-->this.$nextTick(() => {this.cHeight = this.$refs.list.offsetHeight;});})},getUser() {this.$api.getUser().then(res => {if (res && res.code === 200 && res.data) {this.list = res.data;}<!--弹出框-->this.$nextTick(() => {if (this.$refs.cell) {this.sHeight = this.$refs.cell.offsetHeight;}});});},getUnit() {this.$api.getUnit().then(res => {if (res && res.code === 200 && res.data) {this.list = res.data;}<!--弹出框-->this.$nextTick(() => {if (this.$refs.cell) {this.sHeight = this.$refs.cell.offsetHeight;}});});},}}