bug: vue函数组件不能编辑class

### Version

latest

### OS Version

14

### Node.js Version

22

### Browser Version

118

### Link to minimal reproduction

https://github.com/umijs/dumi/blob/master/examples/vue/src/functional.tsx#L33

### Steps to reproduce

添加 class, 然后编辑，就报错了 读取 exposed失败

### What is expected?

正常编辑

### What is actually happening?

报错了

### Any additional comments? (optional)

_No response_