Clicking Publish during an autosave does nothing #19363

Describe the Bug

With autosave on, a click on Publish changes does nothing while an autosave is in flight, and nothing tells the editor. FormSubmit disables the button during background processing, which #11343 added so a publish couldn't overlap an autosave (#6648). With a 100 ms autosave interval, an editor who types and then clicks Publish can hit this. #17455 doesn't fix it.

Link to the code that reproduces this issue

https://github.com/adrian-baker/payload/blob/5e94b4daf98a274c6034febc4e9321b9e60fb7d8/test/versions/e2e.spec.ts#L441

The Publish during an autosave tests fail without the fix.

Reproduction Steps

In test/versions, on the autosave-posts collection:

1. Open a published document.
2. In Playwright, hold the document's autosave PATCH requests.
3. Change the title, and wait for the autosave to be held.
4. Click Publish changes.

Expected: the document publishes with the new title once the autosave is released. Actual: the button is disabled, so the click does nothing.

Which area(s) are affected?

area: ui

Environment Info

main at 138e51688e: Payload 4.0.0-beta.7, Next.js 16.4.2, React 19.3.1, Node.js 24.22.1

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