Calling `redirect("./")` from server action updates route to `./` but with page content from `/`

[brhx]

Link to the code that reproduces this issue

https://github.com/sam3d/next-redirect-bug

To Reproduce

1. Clone the repo and start next dev
2. Open the path http://localhost:3000/hello/world
3. Press the button to call the server action to navigate to ./

Current vs. Expected behavior

Calling redirect("./") in a server action on /hello/world I'd expect the following page to be /hello

However upon clicking I get redirected to /hello/ (with a forward slash) on the client router and the page content contains / instead of the content of /hello

Then if I refresh the content of /hello is loaded correctly and the trailing forward slash is stripped

This issue doesn't occur if JavaScript is disabled.

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.0.0: Mon Aug 12 20:51:54 PDT 2024; root:xnu-11215.1.10~2/RELEASE_ARM64_T6000
  Available memory (MB): 65536
  Available CPU cores: 10
Binaries:
  Node: 20.11.1
  npm: 10.2.4
  Yarn: N/A
  pnpm: 8.15.7
Relevant Packages:
  next: 15.0.2-canary.7 // Latest available version is detected (15.0.2-canary.7).
  eslint-config-next: 15.0.1
  react: 19.0.0-rc-69d4b800-20241021
  react-dom: 19.0.0-rc-69d4b800-20241021
  typescript: 5.6.3
Next.js Config:
  output: N/A

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

Navigation

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

next dev (local), next start (local)

Additional context

No response