What kind of issue is this?

• React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
• babel-plugin-react-compiler (build issue installing or using the Babel plugin)
• eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
• react-compiler-healthcheck (build issue installing or using the healthcheck script)

Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEASggIZyEBmMEGBA5DGRfQNwA6AdnBJ2IQCNSYBAQC8DACZoAbmy5cefQgBUE-AMK0cnBJzzJizPADoAYhvEEAFAEpxAPgLAuBAkv4Et2K0JEdONyY8WECAHm8sAHoHLgBfAK4EAA8cfAJJBEpSKAAbKihuPDReAgAJWgQ7Z1cCYNCCMLVNbV49Qhj4rhAAGhAlSjQAcxR0bFxCPABPLFFgAgAFXKghtE4AeSxi3jACOIJqWgYhAQRcgFosZdXOc6ZyPHOebDRchBgo6X55Ti5rF0CBCiUWeWFepG2nAAshBMoZ2CBSLlcgj4gQwBC0GBBupFtc1ptIWBbKxeuAABYQADuAEl9O9OEiwChsrkRHEgA

Repro steps

Given this input:

import React from 'react';
const base = 'div';

const TestComponent: React.FC = () => {
  const Comp = base;
  return <Comp/>
};

export default function Home() {
  return <TestComponent />
}

The compiler outputs this for the TestComponent

const TestComponent: React.FC = () => {
  const $ = _c(1);
  let t0;
  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
    t0 = <base />;
    $[0] = t0;
  } else {
    t0 = $[0];
  }
  return t0;
};

First reported here: vercel/next.js#86728

This outputs a <base /> tag instead of a div.

I searched on issues before posting, but I couldn't find other reports.

How often does this bug happen?

Every time

What version of React are you using?

Next.js' version on 16.0.6

What version of React Compiler are you using?

1.0.0