Incorrect Location header URL with domain routing i18n

Link to the code that reproduces this issue

https://github.com/SLMNBJ/nextjs-domain-routing-redirect

To Reproduce

1. npm run dev
2. go to http://localhost:3000/en
3. Click the blog link

Current vs. Expected behavior

Current:
Next.js redirects to the wrong hostname. Location header URL uses the matched defaultLocale domain from i18n.domains to prefix the URL

Expected behavior:
Next.js location header should use the current hostname I'm navigating for the location header. If I click http://localhost:3000/fr/will-be-removed/blog I expect to be http://localhost:3000/fr/blog

Provide environment information

Node.js v18.20.3

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.6.0: Fri Jul  5 17:56:41 PDT 2024; root:xnu-10063.141.1~2/RELEASE_ARM64_T6000
  Available memory (MB): 16384
  Available CPU cores: 10
Binaries:
  Node: 18.20.3
  npm: 10.7.0
  Yarn: 1.22.19
  pnpm: N/A
Relevant Packages:
  next: 14.2.5 // Latest available version is detected (14.2.5).
  eslint-config-next: 14.2.5
  react: 18.3.1
  react-dom: 18.3.1
  typescript: 5.5.4
Next.js Config:
  output: N/A

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

Internationalization (i18n), Middleware, Navigation

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

next dev (local), next start (local)

Additional context

I have multiple environments with different domains. I use Domain Routing i18n to configure each domain's locale and add redirects to redirect old URLs to new ones.

Start with the linked reproduction repository and run npm run dev, then reproduce the redirect from /en or /fr/will-be-removed/blog. Trace the i18n domain-routing and middleware navigation that generates the Location header; done means the redirect preserves the current hostname while normalizing the locale path to /fr/blog.