ExtJS 7卡布局幻灯片动画-BUG setActiveItem

我自己的组件有以下配置。当我输入信息“component”.setActiveItem（页面索引）时。它向我显示了错误的内容。仅当我使用此设置时才会发生这种情况：

layout: {
    type: "card", 
    animation: {
      type: "slide", 
      direction: "horizontal"
    }
}

如果我使用配置：

layout: "card"

它工作得很好。问题发生在布局动画中

以下是一个例子：

Ext.define("App.empresas.Form.view", {
    extend: "Ext.Panel",
    xtype: "empresas-form",

    layout: {
        type: "card",
        animation: {
            type: "slide",
            direction: "down"
        }
    },
    items : [{
        xtype: "formpanel",
        reference: "form",
        items: [/*fields config*/]
    },{
        xtype: "grid",
        title: "Contatos",
        reference: "contatos",
        layout: "fit",
        markDirty: true,
        sortable: true,
        grouped: false,
        scrollable: true,
        enableColumnMove: false,
        /* more grid config...*/
    },{
        xtype: "grid",
        title: "Endereços",
        reference: "enderecos",
        layout: "fit",
        markDirty: true,
        sortable: true,
        grouped: false,
        scrollable: true,
        enableColumnMove: false,
        /* more grid config...*/
    },{
        xtype: "grid",
        title: "Pessoas por endereços",
        reference: "pessoas",
        layout: "fit",
        markDirty: true,
        sortable: true,
        grouped: false,
        scrollable: true,
        enableColumnMove: false,
        collapsible: "bottom",
        /* more grid config...*/
    }],
    buttons: [{
        /* buttons config...*/
    }]
});

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提琴样品怎么样？