数据源面板丢失数据源配置

## **Describe the bug (required)** / **详细描述 bug（必填）**

A clear and concise description of what the bug is. / 请提供清晰且精确的 bug 描述
@alilc/lowcode-demo项目1.0.27，直接build启动dev服务器后，数据源面板点击固定面板按钮后，数据源配置会丢失。

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## **To Reproduce (required)** / **如何复现 bug？（必填，非常重要）**

Steps to reproduce the behavior: / 详细复现步骤：

1.git clone 该项目，yarn install，yarn run build，yarn run start启动dev server。
2.在浏览器弹出的默认示例页面上点击边栏数据源图标，弹出数据源面板。
3.点击数据源面板右上角图钉图标，订住面板，再解除订住，默认的info数据源消失，同时浏览器console中print警告：
`react_devtools_backend.js:4026
Warning: Event "UPDATE_DS" was sent to stopped service "dataSourcePane". This service has already reached its final state, and will not transition.
Event: {"type":"UPDATE_DS","payload":[{"type":"fetch","isInit":true,"options":{"params":{},"method":"GET","isCors":true,"timeout":5000,"headers":{},"uri":"mock/info.json"},"id":"info","shouldFetch":{"type":"JSFunction","value":"function() { \n console.log('should fetch.....');\n return true; \n}"}}]}`
4.点击schema图标，发现页面schema中dataSource.list已被清空。

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## **Expected behavior (required)** / **预期行为（必填，非常重要）**
A clear and concise description of what did you expect to happen. / 请清晰和精确的描述你预期的行为

数据源不应被清空

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## **Screenshots (optional)** / **bug 截图（可选）**
Sceenshots for further information. (If applicable.) / 一些有用的截图将会帮助我们更好的明确以及定位问题

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## **Environments (please complete the following information) (required):** / **请提供如下信息（必填）**
- AliLowCodeEngine version: [v1.0.14] / 低代码引擎版本
- AliLowCodeEngineExt version: [v1.0.4] / 低代码引擎扩展包版本
- Browser [Edge v107.0.1402.2] / 浏览器版本
- materials / plugins / tools / 其他物料 / 插件 / 工具链版本
node v14.18
npm v6.14.15
yarn v1.22.19
物料插件均与lowcode-demo相同。

> (this information can be collected via [the manual plugin](https://img.alicdn.com/imgextra/i1/O1CN0115zonY1IsgbkZ2ir7_!!6000000000949-2-tps-3066-1650.png) / 版本信息可[通过低代码用户手册插件收集](https://img.alicdn.com/imgextra/i1/O1CN0115zonY1IsgbkZ2ir7_!!6000000000949-2-tps-3066-1650.png))

## **Additional context (optional)** / **更多额外信息（可选）**
Any other context of the problem here. / 可以追加更多的额外信息，帮助定位问题