vue settings - fail 3.0.9 default test

.vuerc

{
  "useTaobaoRegistry": false,
  "presets": {
    "this-fails-3.0.9": {
      "useConfigFiles": true,
      "plugins": {
        "@vue/cli-plugin-babel": {},
        "@vue/cli-plugin-eslint": {
          "config": "base",
          "lintOn": [
            "save"
          ]
        },
        "@vue/cli-plugin-unit-mocha": {}
      },
      "vueVersion": "3"
    }
  }
}