Middleware NextResponse.rewrite() crashes on colons in paths

[klarstrup]

What version of Next.js are you using?

12.0.4

What version of Node.js are you using?

16.10.0

What browser are you using?

Chrome 95

What operating system are you using?

macOS

How are you deploying your application?

next start

Describe the Bug

Using NextResponse.rewrite("/:blahblah") in a middleware to navigate to a path with a colon in it causes an obtuse TypeError: Expected "blahblah" to be a string style error(ultimately coming from path-to-regexp).

Expected Behavior

Rewriting to a path with a colon in it to simply work without any unexpected replacement being attempted internally.

To Reproduce

something like this in any middleware

import { NextResponse } from "next/server";

export default function middleware() {
  return NextResponse.rewrite("/not-a:param");
}

repro repo here: https://github.com/klarstrup/next-middleware-rewrite-bug

[klarstrup]

Oh and this was working in 12.0.3

[Schniz]

checking this out 🙏

[Schniz]

🤩

[github-actions]

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