v1.1.2: "One-to-many (inversed)" not working as documented

I'm trying to reproduce the following documented example:

import { Collection } from "@msw/data"
import z from "zod/v4"

const postSchema = z.object({
  get comments() {
    return z.array(commentSchema)
  },
})
const commentSchema = z.object({
  text: z.string(),
  get post() {
    return postSchema
  },
})

const posts = new Collection({ schema: postSchema })
const comments = new Collection({ schema: commentSchema })

posts.defineRelations(({ many }) => ({
  comments: many(comments),
}))
comments.defineRelations(({ one }) => ({
  post: one(posts),
}))

await posts.create({
  comments: [await comments.create({ text: 'First!' })],
})

const comment = comments.findFirst((q) => q.where({ text: 'First!' }))
comments.post // { comments: [{ text: 'First', post: Circular }] }

It fails with the error message:

error: Failed to create a new record with initial values: does not match the schema. Please see the schema validation errors above.

I'm using Bun 1.2.0, msw 2.12.2, msw/data 1.1.2 and zod 4.1.12.

Start by reproducing the documented inverse one-to-many example from the issue with Bun, TypeScript, msw/data 1.1.2, and zod 4.1.12. Inspect the schema-validation failure during creation and compare the observed result with the documented circular relation; done means the example creates successfully and exposes the inverse relation as documented.