webpackChunkName magic comment pointing to a folder breaks assets paths in component's CSS

[Cheng007]

Version

3.5.1

Reproduction link

https://github.com/Cheng007/issue-reproduce

Environment info

System:
    OS: macOS 10.14.3
    CPU: (8) x64 Intel(R) Core(TM) i5-8259U CPU @ 2.30GHz
  Binaries:
    Node: 10.14.2 - ~/.nvm/versions/node/v10.14.2/bin/node
    Yarn: Not Found
    npm: 6.4.1 - ~/.nvm/versions/node/v10.14.2/bin/npm
  Browsers:
    Chrome: 72.0.3626.121
    Firefox: 65.0.1
    Safari: 12.0.3
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0-beta.2 
    @vue/babel-plugin-transform-vue-jsx:  1.0.0-beta.2 
    @vue/babel-preset-app:  3.5.1 
    @vue/babel-preset-jsx:  1.0.0-beta.2 
    @vue/babel-sugar-functional-vue:  1.0.0-beta.2 
    @vue/babel-sugar-inject-h:  1.0.0-beta.2 
    @vue/babel-sugar-v-model:  1.0.0-beta.2 
    @vue/babel-sugar-v-on:  1.0.0-beta.2 
    @vue/cli-overlay:  3.5.1 
    @vue/cli-plugin-babel: ^3.5.0 => 3.5.1 
    @vue/cli-plugin-eslint: ^3.5.0 => 3.5.1 
    @vue/cli-service: ^3.5.0 => 3.5.1 
    @vue/cli-shared-utils:  3.5.1 
    @vue/component-compiler-utils:  2.6.0 
    @vue/preload-webpack-plugin:  1.1.0 
    @vue/web-component-wrapper:  1.2.0 
    eslint-plugin-vue: ^5.0.0 => 5.2.2 
    vue: ^2.6.6 => 2.6.10 
    vue-eslint-parser:  2.0.3 
    vue-hot-reload-api:  2.3.3 
    vue-loader:  15.7.0 
    vue-router: ^3.0.1 => 3.0.2 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.5.21 => 2.6.10 
    vue-template-es2015-compiler:  1.9.1 
    vuex: ^3.0.1 => 3.1.0 
  npmGlobalPackages:
    @vue/cli: 3.5.1

Steps to reproduce

Just build for production

npm run build

What is expected?

dist img background url should be ../../img/logo.82b9c7a5.png

What is actually happening?

dist img background url is ../img/logo.82b9c7a5.png

[LinusBorg]

I see, the issue is the /* webpackChunkName */ magic comment.

I'm not sure if this is actually fixable though - we will see.