@babel/preset-env options ignored

[hackedd]

🐛 bug report

I'm trying to compile some code and automatically add polyfills for IE11. To do this, I'd like to use @babel/preset-env with the useBuiltIns option set to usage, so I don't have to manually specify which polyfills to load. However, this option (and others) are never passed to Babel when I run Parcel.

🎛 Configuration (.babelrc, package.json, cli command)

src/test-endswith.js:

console.log(String.prototype.endsWith)
console.log("something".endsWith("thing"))

.babelrc:

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "debug": true,
        "useBuiltIns": "usage",
        "corejs": 3
      }
    ]
  ]
}

package.json:

  "browserslist": [
    "last 2 versions",
    "> 0.25%",
    "not dead",
    "ie >= 11"
  ],

🤔 Expected Behavior

I expect to see debug output from @babel/preset-env, and I expect a polyfill for String.endsWith.

...
Using polyfills with `usage` option:

[.../src/test-endswith.js] Added following core-js polyfill:
  es.string.ends-with { "chrome":"49", "edge":"17", "ie":"11", "safari":"5.1" }

...

😯 Current Behavior

The debug output is not displayed, and the polyfill is not included.

💁 Possible Solution

It looks like env presets are removed completely from the loaded config, maybe the options could be merged instead?

🔦 Context

💻 Code Sample

https://gist.github.com/hackedd/c4aa9368d542e75ea9186a59b2d2a1d9

🌍 Your Environment

Software	Version(s)
Parcel	1.12.4
Node	12.18.2
npm/Yarn	6.14.8
Operating System

[mischnic]

Duplicate of #3216