Form 组件 onFinish 的 values 参数 和 form.getFieldsValue() 结果不一致

### Reproduction link

[](https://stackblitz.com/edit/mwfinsim?file=App.tsx)

https://codesandbox.io/p/sandbox/proform-date-bug-m6jjyp

### Steps to reproduce

1. fill in the form fields
2. submit
3. check the data log inside the console: the `contractTime` is not available in the Form.onFinish.values

### What is expected?

`values.contractTime` supposed to be Date[], same as the `form.getFieldsValue().contractTime` result.

### What is actually happening?

`values.contractTime` is empty object array.
`form.getFieldsValue().contractTime` is Date array.

| Environment | Info |
| --- | --- |
| antd | 5.24.3 |
| React | 19.0.0 |
| System | macos |
| Browser | chrome |

Start with the linked StackBlitz or CodeSandbox reproduction and inspect the Form.onFinish values alongside form.getFieldsValue() for contractTime. Confirm the behavior with the listed Ant Design, React, and Chrome versions; done means values.contractTime is a Date[] matching the form.getFieldsValue().contractTime result.

Written by the indexing model from the issue text.