In vercel.json I am using the redirects array to configure a bunch of redirects. One of them has () brackets in the redirect destination and I cannot work out how to get it to work correctly. The Next docs suggest doing “redirect-\(brackets\)-path” works but this fails in Vercel with Redirect at index xxx has segment ":__UN_NAMED_SEGMENT__" in `destination` property but not in `source` or `has` property.

Sample redirect:

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"redirects": [{
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  "source": "/test",
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  "destination": "test-\\(not-really\\)"
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}]

Should be enough to show the error

No framework, just vercel.json and a statically generated site