Changing custom-element attribute with setAttribute() does not rerender it

[dsolimando]

function App({ firstName }) {
  return `Hello ${firstName}!`;
}

customElements.define(
  'my-alt',
  component(App, { observedAttributes: ['first-name'] })
);
document.querySelector('my-alt').setAttribute('first-name','Bart')

I expect component to rerender.

[megheaiulian]

@dsolimando Does this still happen for you? Can you perhaps create a small repo reproducing this issue ?