System Info

System:
OS: macOS 15.5
CPU: (14) arm64 Apple M4 Pro
Memory: 4.90 GB / 48.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 24.5.0 - ~/.nvm/versions/node/v24.5.0/bin/node
Yarn: 1.22.22 - ~/.nvm/versions/node/v24.5.0/bin/yarn
npm: 11.5.1 - ~/.nvm/versions/node/v24.5.0/bin/npm
pnpm: 10.15.1 - ~/.nvm/versions/node/v24.5.0/bin/pnpm
Browsers:
Chrome: 140.0.7339.80
Safari: 18.5
npmPackages:
@rspack/cli: ^1.4.11 => 1.4.11
@rspack/core: ^1.4.11 => 1.4.11
@rspack/plugin-react-refresh: ^1.4.3 => 1.4.3

Details

When I use magic comments with webpackChunkName and webpackExports together, it cannot generate the correct chunk name.

For the code below, the webpackChunkName can't take effect.

const foo = () => import(
		/*webpackChunkName: "foo"*/
		/*webpackExports: "default"*/
		'./foo')

Reproduce link

https://github.com/zhangyuang/rspack-bug-splitchunk/tree/bug/webpackExports

Reproduce Steps

# yarn && npm run build && ls dist
787.js       787.js.map   index.html   main.css     main.css.map main.js      main.js.map

There will generate 787.js instead of foo.js