Bug Description

src/component.js is similar to a npm library built from webpack which already have __webpack_require__ in code.

When src/component.js is bundled again in webpack, the source code in src/component.js which already have __webpack_require__ symbol is transformed uncorrectly thus causing a runtime error of react refresh.

src/component-new.js behaves well which is as same as src/component.js except replace __webpack_require__ to __my_require__.

src/component.js

src/component-new.js

I suspect this is an issue with react refresh mounting the runtime to webpack_require, where __nested_webpack_require_ is being applied incorrectly in webpack.

Link to Minimal Reproduction and step to reproduce

https://github.com/Timeless0911/webpack-require-issue

Steps:

1. Run pnpm install
2. Run pnpm start to see the runtime error in browser

3. Modify src/index.js

- import { Counter } from "./component";
+ import { Counter } from "./component-new";

4. Run pnpm start again to see there is no error

Expected Behavior

Component render correctly.

Actual Behavior

Runtime error about react refresh.

Environment

System:
    OS: macOS 15.6.1
    CPU: (10) arm64 Apple M1 Max
    Memory: 4.20 GB / 64.00 GB
  Binaries:
    Node: 22.18.0
    Yarn: 1.22.22
    npm: 10.9.3
    pnpm: 10.22.0
  Browsers:
    Chrome: 142.0.7444.162
    Safari: 18.6
  Packages:
    babel-loader: ^10.0.0 => 10.0.0 
    html-webpack-plugin: ^5.6.5 => 5.6.5 
    webpack: ^5.103.0 => 5.103.0 
    webpack-cli: ^6.0.1 => 6.0.1 
    webpack-dev-server: ^5.2.2 => 5.2.2

Is this a regression?

None

Last Working Version

No response

Additional Context

No response