steps-form proFormInstance.setFieldsValue setting only first step

### Reproduction link

[](https://codesandbox.io/p/sandbox/quizzical-morse-x3v9fn?file=%2FApp.tsx%3A27%2C20&layout=%257B%2522sidebarPanel%2522%253A%2522EXPLORER%2522%252C%2522rootPanelGroup%2522%253A%257B%2522direction%2522%253A%2522horizontal%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522id%2522%253A%2522ROOT_LAYOUT%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522UNKNOWN%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522clv9di5db00063b6zam9332ea%2522%252C%2522sizes%2522%253A%255B100%252C0%255D%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522EDITOR%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522EDITOR%2522%252C%2522id%2522%253A%2522clv9di5db00023b6ze3nnsji7%2522%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522direction%2522%253A%2522horizontal%2522%252C%2522id%2522%253A%2522SHELLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522SHELLS%2522%252C%2522id%2522%253A%2522clv9di5db00033b6z3bj9ysxj%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%257D%252C%257B%2522type%2522%253A%2522PANEL_GROUP%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522direction%2522%253A%2522vertical%2522%252C%2522id%2522%253A%2522DEVTOOLS%2522%252C%2522panels%2522%253A%255B%257B%2522type%2522%253A%2522PANEL%2522%252C%2522contentType%2522%253A%2522DEVTOOLS%2522%252C%2522id%2522%253A%2522clv9di5db00053b6zabzzzt7c%2522%257D%255D%252C%2522sizes%2522%253A%255B100%255D%257D%255D%252C%2522sizes%2522%253A%255B50%252C50%255D%257D%252C%2522tabbedPanels%2522%253A%257B%2522clv9di5db00023b6ze3nnsji7%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clv9di5db00013b6zuhn8xl6h%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522FILE%2522%252C%2522filepath%2522%253A%2522%252Findex.html%2522%252C%2522state%2522%253A%2522IDLE%2522%257D%252C%257B%2522id%2522%253A%2522clv9drpke00023b6zypht4fv9%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522FILE%2522%252C%2522initialSelections%2522%253A%255B%257B%2522startLineNumber%2522%253A27%252C%2522startColumn%2522%253A20%252C%2522endLineNumber%2522%253A27%252C%2522endColumn%2522%253A20%257D%255D%252C%2522filepath%2522%253A%2522%252FApp.tsx%2522%252C%2522state%2522%253A%2522IDLE%2522%257D%255D%252C%2522id%2522%253A%2522clv9di5db00023b6ze3nnsji7%2522%252C%2522activeTabId%2522%253A%2522clv9drpke00023b6zypht4fv9%2522%257D%252C%2522clv9di5db00053b6zabzzzt7c%2522%253A%257B%2522tabs%2522%253A%255B%257B%2522id%2522%253A%2522clv9di5db00043b6zou8jr52p%2522%252C%2522mode%2522%253A%2522permanent%2522%252C%2522type%2522%253A%2522UNASSIGNED_PORT%2522%252C%2522port%2522%253A0%252C%2522path%2522%253A%2522%252F%2522%257D%255D%252C%2522id%2522%253A%2522clv9di5db00053b6zabzzzt7c%2522%252C%2522activeTabId%2522%253A%2522clv9di5db00043b6zou8jr52p%2522%257D%252C%2522clv9di5db00033b6z3bj9ysxj%2522%253A%257B%2522tabs%2522%253A%255B%255D%252C%2522id%2522%253A%2522clv9di5db00033b6z3bj9ysxj%2522%257D%257D%252C%2522showDevtools%2522%253Atrue%252C%2522showShells%2522%253Afalse%252C%2522showSidebar%2522%253Atrue%252C%2522sidebarPanelSize%2522%253A15%257D)

### Steps to reproduce

N/A

### What is expected?

as you can see I set "name" in the firststep and "surname" in the second, but only name get set

### What is actually happening?

surname not being set

| Environment | Info |
| --- | --- |
| antd | 5.16.2 |
| React | react 18.2.0 ,extjs (14.1.3) |
| System | Macos sonoma |
| Browser | chrome |

Start with the linked CodeSandbox and inspect App.tsx around line 27, where proFormInstance.setFieldsValue is used with the steps form. Reproduce the case and verify that both the first-step name and second-step surname are set; done means surname is populated as expected.

Written by the indexing model from the issue text.