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.
}
      }
    }
    const child = mountChildFibers(
      workInProgress,
      null,
      nextChildren,
      renderLanes,
    );
    workInProgress.child = child;
    let node = child;
    while (node) {
      
      
      
      
      
      
      node.effectTag = (node.effectTag & ~Placement) | Hydrating;
      node = node.sibling;
    }
  } else {
    
    
    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
    resetHydrationState();
  }
  return workInProgress.child;
}
function updateHostComponent(