Stale data on backward/forward navigation

[Janisvb]

Describe the Bug

1. When opening a collection item from the items list, changing a field, and pressing the back button of the browser, the value in the list shows the old value
2. When changing a field, navigating to another page and pressing the back button of the browser, the field shows the old value

While the first case is only annoying, the second case can easily lead to data loss by overwriting your updates with stale data.

Link to the code that reproduces this issue

https://github.com/janisvb/payload-reproduction

Reproduction Steps

pnpm dev _community

1. Navigate to http://localhost:3000/admin/collections/posts
2. Open "example post"
3. Change example post to new post and save
4. Press back button of browser. List still shows example post as title
5. Press forward button of browser. Title field shows example post instead of new post

Which area(s) are affected? (Select all that apply)

area: ui

Environment Info

payload: 3.50.0
next: 15.4.4
react: 19.1.0