CURD 组件开启点选无效

[younglifestyle]

描述问题：

https://baidu.github.io/amis/zh-CN/components/crud#%E5%BC%80%E5%90%AF%E7%82%B9%E9%80%89

截图或视频：

当前使用是无效的，在文档中正常，但实际放到amis编辑器中，无法开启。

如何复现（请务必完整填写下面内容）：

1. 你是如何使用 amis 的？
   sdk、npm 或其他...

2. amis 版本是什么？请先在最新 beta 版本测试问题是否存在

粘贴至amis编辑器中，https://aisuda.github.io/amis-editor-demo/#/edit/0

3. 粘贴有问题的完整 amis schema 代码：

{
  "type": "page",
  "body": [
    {
      "type": "crud",
      "api": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/mock2/sample",
      "syncLocation": false,
      "selectable": true,
      "headerToolbar": [
        {
          "type": "button",
          "label": "按钮",
          "visibleOn": "${selectedItems.length}",
          "actionType": "toast",
          "toast": {
            "items": [
              {
                "level": "info",
                "body": "${selectedItems|json}"
              }
            ]
          },
          "id": "u:24ca7b52deb4"
        }
      ],
      "columns": [
        {
          "name": "id",
          "label": "ID",
          "id": "u:e594be8f6651"
        },
        {
          "name": "engine",
          "label": "Rendering engine",
          "id": "u:5470b4c67584"
        },
        {
          "name": "browser",
          "label": "Browser",
          "id": "u:c394ac241e9c"
        },
        {
          "name": "platform",
          "label": "Platform(s)",
          "id": "u:93e93af4feae"
        },
        {
          "name": "version",
          "label": "Engine version",
          "id": "u:02a8f4a05c5e"
        },
        {
          "name": "grade",
          "label": "CSS grade",
          "id": "u:51aecad17fc8"
        }
      ],
      "id": "u:249f7089ee5e"
    }
  ],
  "id": "u:6e369ffd4c1e",
  "asideResizor": false,
  "pullRefresh": {
    "disabled": true
  }
}

4. 操作步骤
   请简单描述一下复现的操作步骤...