Follow up from https://github.com/facebook/react/pull/11616.

Here's one I found. These two invariants:

https://github.com/facebook/react/blob/7e7127387ba64f57299eaff8656542cea6fb3a2d/packages/react-reconciler/src/ReactFiberClassComponent.js#L330-L343

are in a function that's behind a DEV block:

https://github.com/facebook/react/blob/7e7127387ba64f57299eaff8656542cea6fb3a2d/packages/react-reconciler/src/ReactFiberClassComponent.js#L447-L449

I don't think this is intentional, but need to verify.

There may be more. I'll use this issue to track while https://github.com/facebook/react/pull/11616 preserves existing behavior.
const e = await render(<input type="checkbox" checked={true} />, 1);
          expect(e.checked).toBe(true);
        },
      );
      itRenders('a checkbox with defaultChecked', async render => {
        const e = await render(<input type="checkbox" defaultChecked={true} />);
        expect(e.checked).toBe(true);
        expect(e.getAttribute('defaultChecked')).toBe(null);
      });
      itRenders(
        'a checkbox checked overriding defaultChecked',
        async render => {
          const e = await render(
            <input
              type="checkbox"
              checked={true}
              defaultChecked={false}
              readOnly={true}
            />,
            1,
          );
          expect(e.checked).toBe(true);
          expect(e.getAttribute('defaultChecked')).toBe(null);
        },
      );
      itRenders(
        'a checkbox checked overriding defaultChecked no matter the prop order',
        async render => {
          const e = await render(
            <input