Not working for commonjs typescript that uses js extensions in local imports

[benasher44]

Repro

Put these files next to each other in the same directory

// other_file.ts

export default function() {
    console.log("hello");
}

// test.ts

import otherFile from  "./other_file.js"
otherFile()

//.swcrc

{
  "$schema": "https://json.schemastore.org/swcrc",
  "module": {
    "type": "commonjs"
  },
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": true,
      "decorators": true,
      "dynamicImport": true
    },
    "transform": {
      "legacyDecorator": true,
      "decoratorMetadata": true
    },
    "target": "es2022",
    "keepClassNames": true
  }
}

Run: SWCRC=true node -r @swc-node/register test.ts

Expect

swc translates the .js import as if it's importing the .ts file, since it matches the .js ending in the final ts emit.

Actual

It crashes:

node:internal/modules/cjs/loader:1147
  throw err;
  ^

Error: Cannot find module './other_file.js'
Require stack:
- /Users/basher/code/ashby/backend/test.ts
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:1144:15)
    at Function.Module._load (node:internal/modules/cjs/loader:985:27)
    at Module.require (node:internal/modules/cjs/loader:1235:19)
    at require (node:internal/modules/helpers:176:18)
    at Object.<anonymous> (/Users/basher/code/ashby/backend/test.ts:5:60)
    at Module._compile (node:internal/modules/cjs/loader:1376:14)
    at Module._compile (/Users/basher/code/ashby/backend/node_modules/pirates/lib/index.js:117:24)
    at Module._extensions..js (node:internal/modules/cjs/loader:1435:10)
    at Object.newLoader [as .ts] (/Users/basher/code/ashby/backend/node_modules/pirates/lib/index.js:121:7)
    at Module.load (node:internal/modules/cjs/loader:1207:32) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/Users/basher/code/ashby/backend/test.ts' ]
}

From this, it looks like swc isn't properly translating the import (to understand that it's importing the local ts file). I understand that this project is very ESM-focused these days, but supporting this would help projects migrate to ESM, since a big first step is switching to .js extensions + node supports .js endings in CommonJS modules.

I was using node 20.11.1, @swc/core 1.4.16, and @swc-node/register 1.9.0