## React version
React version: 18.3.0-next-b0671f9ea-20230130

## Problem
In `StrictMode`,  when using hydrateRoot to render a component that using `useSyncExternalStore` it seems that useSES will do hydration twice. 

But in second hydration process,  useSES does not use the result of `getServerSnapshot` as initial state, which will cause hydration error.

This problem will only happen in `development` mode, 

## Reproduce
Link to code example:
https://codesandbox.io/s/useses-18-3-rojznv

It works well in react 18.2
https://codesandbox.io/s/useses-18-2-13iskc




<body>
            <Suspense fallback={'loading...'}>
              <AsyncText text="Hello" />
            </Suspense>
          </body>
        </html>,
        {
          unstable_externalRuntimeSrc: 'src-of-external-runtime',
        },
      );
      pipe(writable);
    });
    
    
    
    expect(
      Array.from(document.head.getElementsByTagName('script')).map(
        n => n.outerHTML,
      ),
    ).toEqual(['<script src="src-of-external-runtime" async=""></script>']);
    expect(getVisibleChildren(document)).toEqual(
      <html>
        <head />
        <body>loading...</body>
      </html>,
    );
  });
  
  it('does not send script tags for SSR instructions when using the external runtime', async () => {
    function App() {