If you have `memo(forwardRef(X))`, then the inner component won't have a "rendered by" list. This is because it technically doesn't have an owner. It is artificial.

I think we should ideally set up `_debugOwner` for these Fibers in DEV just so existing tooling can find them. Or special case them in DevTools.
nextPrimaryChildren,
          renderLanes,
        );
        workInProgress.memoizedState = null;
        return primaryChildFragment;
      }
    }
  }
}
function mountSuspensePrimaryChildren(
  workInProgress,
  primaryChildren,
  renderLanes,
) {
  const mode = workInProgress.mode;
  const primaryChildProps: OffscreenProps = {
    mode: 'visible',
    children: primaryChildren,
  };
  const primaryChildFragment = createFiberFromOffscreen(
    primaryChildProps,
    mode,
    renderLanes,
    null,
  );
  primaryChildFragment.return = workInProgress;
  workInProgress.child = primaryChildFragment;
  return primaryChildFragment;
}
function mountSuspenseFallbackChildren(