fix: 修复级联选择器数据源异常label为数组时页面崩溃的问题

[CheshireJCat]

当数据源为api返回是以下内容时

{
    "status": 0,
    "msg": "",
    "data": {
      "links":
        [{ "label": "Nav 1", "to": "?cat=1", "value": "1", "icon": "fa fa-user" }, { "label": "Nav 2", "unfolded": true, "children": [{ "label": "Nav 2-1", "children": [{ "label": "Nav 2-1-1", "to": "?cat=2-1", "value": "2-1" }] }, { "label": "Nav 2-2", "to": "?cat=2-2", "value": "2-2" }] }, { "label": "Nav 3", "to": "?cat=3", "value": "3", "defer": true }],
      "value": "?cat=1"
    }
  }

会引发页面崩溃

需要对labelji进行兼容处理

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[2betop]

你这示例的 label 看起来都是正常的呢

[CheshireJCat]

你这示例的 label 看起来都是正常的呢

@2betop label是正常的，但是仔细看数据不是options，而是links，这种特殊情况，links 的值会被当成 label，
也就是说，当前label是个 数组[{ "label": "Nav 1", "to": "?cat=1", "value": "1", "icon": "fa fa-user" },....]，但这数据不是schema，所以导致渲染报错了