why the webpack option of the last plugin will override the one from next config?

[videni]

const nextConfig = {
  useFileSystemPublicRoutes: false,
  webpack: (config) => {
     console.log(1);  // not output,  this one is not executed
     config.resolve.alias = {
      ...config.resolve.alias,
      'react-jsonschema-form': '@vidyvideni/react-jsonschema-form',
      '@': path.resolve(__dirname, 'src'),
    };
      return config;
   }
  }

module.exports = withPlugins([
  [withTM, {
    transpileModules: [
      '@ant-design/pro-layout',
      'antd',
    ],
   // If I remove this webpack, the above one will execute, why?
    webpack: (config, options) => { 
console.log(2) ;  // output 2, this one is executed.
      config.resolve.alias = {
        ...config.resolve.alias,
        '@ant-design/pro-layout': require.resolve('@ant-design/pro-layout'),
        'antd': require.resolve('antd'),
      };

      return config;
    },
  }]
], nextConfig)

[cyrilwanner]

This is unfortunately a limitation by next. You will have to define everything inside one webpack function.