fix：群聊信息不完整

wl

2022-12-28 1390316c51fc938fbe7d9daf53a9c3a5a2f931b1

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<view class="content">
    <view class="lists" wx:for="{{causeList}}" wx:key="id">
            <view class="item2"><image class="icon" src="../../../../icon/公告 (1).png"></image>群公告</view>
            <view class="item">{{item.ctime}}</view>
            <view class="item3">{{item.text}}</view>
        </view>
</view>