Minimal reproduction code generation issue with babel and new JSX transformation with preact 10.5.x release.

See Introducing the New JSX Transform blog post for background on the code generation change.

$ npm install

Then inspect dist/main.js compiled result.

With improvements to the babel transform process, including babel issue 12557 fixed, sensible code now gets generated:

function App(_ref) {
  var style = _ref.style;
  return jsxRuntime_module_o("h1", {
    style: style,
    children: "Title"
  });
}