Twitter bootstrap 将引导3.x列表组转换为引导4

下面的菜单正在引导4上运行。但是，当我单击列表组项目时，已折叠的项目将不会关闭

<div id="menu">
<div class="panel list-group">
    <a href="#" class="list-group-item" data-toggle="collapse" data-target="#sm" data-parent="#menu">MESSAGES <span class="label label-info">5</span> <span class="glyphicon glyphicon-envelope pull-right"></span></a>
    <div id="sm" class="sublinks collapse">
        <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> inbox</a>
        <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> sent</a>
    </div>
    <a href="#" class="list-group-item" data-toggle="collapse" data-target="#sl" data-parent="#menu">TASKS <span class="glyphicon glyphicon-tag pull-right"></span></a>
    <div id="sl" class="sublinks collapse">
        <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> saved tasks</a>
        <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> add new task</a>
    </div>
    <a href="#" class="list-group-item">ANOTHER LINK ...<span class="glyphicon glyphicon-stats pull-right"></span></a>
</div>

Bootstrap3.x是

在Bootstrap4.x中，面板已更改为card。用卡片替换代码中的面板，手风琴将按预期工作

<div id="menu">
    <div class="card list-group"> <a href="#" class="list-group-item" data-toggle="collapse" data-target="#sm" data-parent="#menu">MESSAGES <span class="badge badge-info">5</span> <span class="glyphicon glyphicon-envelope float-right"></span></a>
        <div id="sm" class="sublinks collapse"> <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> inbox</a>
            <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> sent</a>
        </div> <a href="#" class="list-group-item" data-toggle="collapse" data-target="#sl" data-parent="#menu">TASKS <span class="glyphicon glyphicon-tag float-right"></span></a>
        <div id="sl" class="sublinks collapse"> <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> saved tasks</a>
            <a class="list-group-item small"><span class="glyphicon glyphicon-chevron-right"></span> add new task</a>
        </div> <a href="#" class="list-group-item">ANOTHER LINK ...<span class="glyphicon glyphicon-stats float-right"></span></a>
    </div>