incorrectly defaulting CJS code to strict mode

I have an ejected CRA with a custom webpack loader. I use swc-loader instead of babel-loader for faster compile time. Actually, I add @walletconnect/web3-provider into my app. I got an error to include { util: require.resolve('util/') } into resolve.fallback webpack configuration. After that error was fixed, I got the error again like this

ERROR in ./node_modules/util/util.js
Module build failed (from ./node_modules/swc-loader/src/index.js):
Error: 
  × the name `fn` is defined multiple times
     ╭─[/media/data/SIDE_PROJECTS/webpack-react-ts-inversify-web-worker/node_modules/util/util.js:617:5]
 617 │ var fn = original[kCustomPromisifiedSymbol];
     ·     ─┬
     ·      ╰── previous definition of `fn` here
 618 │     if (typeof fn !== 'function') {
 619 │       throw new TypeError('The "util.promisify.custom" argument must be of type Function');
 620 │     }
 621 │     Object.defineProperty(fn, kCustomPromisifiedSymbol, {
 622 │       value: fn, enumerable: false, writable: false, configurable: true
 623 │     });
 624 │     return fn;
 625 │   }
 626 │ 
 627 │   function fn() {
     ·            ─┬
     ·             ╰── `fn` redefined here
     ╰────

I request to refactor fn variable/function definition, but I have a comment like this from its member:

https://github.com/browserify/node-util/issues/75#issuecomment-1161064376

Maybe, is swc-loader (or @swc/core) has a problem incorrectly defaulting CJS code to strict mode?

swc-project / swc-loader

incorrectly defaulting CJS code to strict mode #54