【报Bug】uni-popup无法弹出

示例代码：

    <uni-popup ref='popupShare' type='share'>  
        <uni-popup-share :tan_data="tan_data" @goapp="goapp"></uni-popup-share>  
    </uni-popup>  

<uni-popup ref="popup" type="center" style="justify-content: inherit;">
<view class="tab-mask" :style="{'top': (style_header.style=='style1' ? '144rpx':'220rpx')}">
<view class="tab-mask-t">
<text>全部频道</text>
<image @click="closePopup" src="../../static/img/close.png" mode=""></image>
</view>
<view class="tab-mask-b">
<view class="tab-mask-bdemo" v-for="item in tabList" @click="tabLink(item.mold)">
<easy-cacheimage :image-src="item.thumb" :cacheTime="0.002"></easy-cacheimage>
<text :style="{'color':(tabActive==item.mold)?'#E30632':'#333'}">{{item.title}}</text>
</view>
</view>
</view>
</uni-popup>

操作步骤：

下面的弹窗存在时上面的弹窗就无法弹出
<uni-popup ref='popupShare' type='share'>
<uni-popup-share :tan_data="tan_data" @goapp="goapp"></uni-popup-share>
</uni-popup>

<uni-popup ref="popup" type="center" style="justify-content: inherit;">
<view class="tab-mask" :style="{'top': (style_header.style=='style1' ? '144rpx':'220rpx')}">
<view class="tab-mask-t">
<text>全部频道</text>
<image @click="closePopup" src="../../static/img/close.png" mode=""></image>
</view>
<view class="tab-mask-b">
<view class="tab-mask-bdemo" v-for="item in tabList" @click="tabLink(item.mold)">
<easy-cacheimage :image-src="item.thumb" :cacheTime="0.002"></easy-cacheimage>
<text :style="{'color':(tabActive==item.mold)?'#E30632':'#333'}">{{item.title}}</text>
</view>
</view>
</view>
</uni-popup>

预期结果：

下面的弹窗存在时上面的弹窗就无法弹出
<uni-popup ref='popupShare' type='share'>
<uni-popup-share :tan_data="tan_data" @goapp="goapp"></uni-popup-share>
</uni-popup>

<uni-popup ref="popup" type="center" style="justify-content: inherit;">
<view class="tab-mask" :style="{'top': (style_header.style=='style1' ? '144rpx':'220rpx')}">
<view class="tab-mask-t">
<text>全部频道</text>
<image @click="closePopup" src="../../static/img/close.png" mode=""></image>
</view>
<view class="tab-mask-b">
<view class="tab-mask-bdemo" v-for="item in tabList" @click="tabLink(item.mold)">
<easy-cacheimage :image-src="item.thumb" :cacheTime="0.002"></easy-cacheimage>
<text :style="{'color':(tabActive==item.mold)?'#E30632':'#333'}">{{item.title}}</text>
</view>
</view>
</view>
</uni-popup>

实际结果：

下面的弹窗存在时上面的弹窗就无法弹出
<uni-popup ref='popupShare' type='share'>
<uni-popup-share :tan_data="tan_data" @goapp="goapp"></uni-popup-share>
</uni-popup>

<uni-popup ref="popup" type="center" style="justify-content: inherit;">
<view class="tab-mask" :style="{'top': (style_header.style=='style1' ? '144rpx':'220rpx')}">
<view class="tab-mask-t">
<text>全部频道</text>
<image @click="closePopup" src="../../static/img/close.png" mode=""></image>
</view>
<view class="tab-mask-b">
<view class="tab-mask-bdemo" v-for="item in tabList" @click="tabLink(item.mold)">
<easy-cacheimage :image-src="item.thumb" :cacheTime="0.002"></easy-cacheimage>
<text :style="{'color':(tabActive==item.mold)?'#E30632':'#333'}">{{item.title}}</text>
</view>
</view>
</view>
</uni-popup>