umi 打包后拆分chunk后，umi.js并没有减少

[Maolipeng]

umi config配置如下

 chunks: ['vendors-test', 'umi'],
  chainWebpack: (config) => {
    config.merge({
      optimization: {
        minimize: true,
        splitChunks: {
          chunks: 'all',
          minSize: 30000,
          minChunks: 3,
          automaticNameDelimiter: '.',
          cacheGroups: {
            vendors: {
              name: 'vendors-test',
              chunks: 'all',
              // test: /[\\/]node_modules[\\/](?!lodash|antd|monaco-editor).*$/,
              test: /[\\/]node_modules[\\/]/,
              priority: 120
            },

打包完成后成功打出了vendors-test的包,但是相应的umi.js中的资源没有减少

仍然包含antd等资源