Repro: https://codesandbox.io/s/fast-water-4i4jb

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
let renderState: null | SuspenseListRenderState =
    workInProgress.memoizedState;
  if (renderState === null) {
    workInProgress.memoizedState = ({
      : ,
      rendering: null,
      renderingStartTime: 0,
      : ContentRow,
      : ,
      Expiration: 0,
      Mode: Mode,
      Effect: EffectBeforeRendering,
    }: SuspenseListRenderState);
  } else {
     
    renderState. = ;
    renderState.rendering = null;
    renderState.renderingStartTime = 0;
    renderState. = ContentRow;
    renderState. = ;
    renderState.Expiration = 0;
    renderState.Mode = Mode;
    renderState.Effect = EffectBeforeRendering;
  }
}
 This can end up rendering this component multiple passes.
 The first pass splits the children fibers into two sets. A head and .
 We first render the head. If anything is in fallback state, we do another
 pass through beginWork to rerender all children (including the ) with
 the force suspend context. If the first render didn't have anything in