InputFile 组件在form组件内没有上传按钮，在form组件外正常显示。

[Peppa-i]

描述问题：

InputFile 组件在form组件内没有上传按钮，在form组件外正常显示。

截图或视频：

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

2. amis 版本是什么？请先在最新 beta 版本测试问题是否存在 6.12.0 amis编辑器中出现，渲染的页面也存在这个现象

3. 粘贴有问题的完整 amis schema 代码：

{
  "type": "dialog",
  "body": [
    {
      "type": "form",
      "id": "u:d3c55f737b22",
      "title": "表单",
      "mode": "flex",
      "labelAlign": "top",
      "dsType": "api",
      "feat": "Edit",
      "body": [
        {
          "name": "files",
          "label": "附件",
          "row": 0,
          "type": "input-file",
          "id": "u:5092bf8573e1",
          "btnLabel": "文件上传",
          "multiple": false,
          "uploadType": "fileReceptor",
          "proxy": true,
          "autoUpload": true,
          "useChunk": false,
          "accept": "",
          "drag": false
        }
      ],
      "actions": [
        {
          "type": "button",
          "label": "取消",
          "onEvent": {
            "click": {
              "actions": [
                {
                  "actionType": "cancel",
                  "componentId": "u:d3c55f737b22"
                }
              ]
            }
          },
          "level": "default"
        },
        {
          "type": "button",
          "label": "提交",
          "onEvent": {
            "click": {
              "actions": [
                {
                  "actionType": "submit",
                  "componentId": "u:d3c55f737b22"
                }
              ]
            }
          },
          "level": "primary"
        }
      ],
      "static": true,
      "initApi": "",
      "api": {
        "url": "/api/storehouse-emergency-purchase/stored",
        "method": "post",
        "requestAdaptor": "",
        "adaptor": "",
        "messages": {},
        "data": {
          "purchaseId": "${id}",
          "files": "${files}"
        }
      },
      "resetAfterSubmit": true,
      "onEvent": {
        "submitSucc": {
          "weight": 0,
          "actions": [
            {
              "componentId": "u:275aeaa93780",
              "groupType": "component",
              "actionType": "search",
              "args": {}
            }
          ]
        }
      }
    },
    {
      "type": "input-file",
      "label": "文件上传",
      "autoUpload": true,
      "proxy": true,
      "uploadType": "asForm",
      "name": "aaa",
      "id": "u:f46180a98332",
      "btnLabel": "文件上传",
      "multiple": false,
      "useChunk": false,
      "accept": "",
      "drag": false,
      "colSize": "1",
      "asBlob": false,
      "formType": "asBase64",
      "asBase64": true,
      "bos": "default",
      "row": 1
    }
  ],
  "title": "归档",
  "id": "u:f628d700c566",
  "actions": [
    {
      "type": "button",
      "actionType": "cancel",
      "label": "取消",
      "id": "u:9c303a5e78e3"
    },
    {
      "type": "button",
      "actionType": "submit",
      "label": "提交",
      "id": "u:0e461ed93396",
      "level": "primary",
      "close": false,
      "confirmText": "是否确认归档？",
      "onEvent": {
        "click": {
          "weight": 0,
          "actions": [
            {
              "ignoreError": false,
              "actionType": "refresh"
            }
          ]
        }
      },
      "disabledOnAction": false
    }
  ],
  "size": "md",
  "actionType": "dialog",
  "showCloseButton": true,
  "closeOnOutside": false,
  "closeOnEsc": false,
  "showErrorMsg": true,
  "showLoading": true,
  "draggable": false,
  "editorSetting": {
    "displayName": "归档"
  }
}

4. 操作步骤 请简单描述一下复现的操作步骤...

[github-actions[bot]]

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[lhtuling]

测试无问题，自己检查是否其他样式污染，或者版本问题？

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