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

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
if (__DEV__) {
        if (workInProgress.type !== workInProgress.elementType) {
          const outerPropTypes = Component.propTypes;
          if (outerPropTypes) {
            checkPropTypes(
              outerPropTypes,
              resolvedProps, 
              'prop',
              getComponentName(Component),
            );
          }
        }
      }
      child = updateMemoComponent(
        null,
        workInProgress,
        Component,
        resolveDefaultProps(Component.type, resolvedProps), 
        updateExpirationTime,
        renderExpirationTime,
      );
      return child;
    }
    case Block: {
      if (enableBlocksAPI) {
        
        child = updateBlock(
          null,
          workInProgress,
          Component,