happypack and scoped/postcss-loader conflict？

[tichenchen]

{ test: /\.(less|css)$/, use: [ 'vue-style-loader', 'happypack/loader?id=css' ] }

new HappyPack({ id: 'css', loaders: [ { loader: 'css-loader', }, { loader: 'postcss-loader', }, { loader: 'less-loader', options: { javascriptEnabled: true } } ], threadPool, verbose: false })

The class styles of different files will overwrite each other。
Scoped is invalid。