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

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
ContentRow.sibling = null;
        }
        initSuspenseListRenderState(
          workInProgress,
          false,  
          ,
          ContentRow,
          Mode,
          workInProgress.Effect,
        );
        break;
      }
      case 'backwards': {
         
         
         
         
        let  = null;
        let row = workInProgress.child;
        workInProgress.child = null;
        while (row !== null) {
          let currentRow = row.alternate;
           
          if (currentRow !== null && findFirstSuspended(currentRow) === null) {
             
            workInProgress.child = row;
            break;
          }
          let nextRow = row.sibling;
          row.sibling = ;