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

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
let primaryChild = primaryChildFragment.child;
              while (primaryChild !== null) {
                const childUpdateExpirationTime = primaryChild.expirationTime;
                const childChildExpirationTime =
                  primaryChild.childExpirationTime;
                if (
                  (childUpdateExpirationTime !== NoWork &&
                    childUpdateExpirationTime >= renderExpirationTime) ||
                  (childChildExpirationTime !== NoWork &&
                    childChildExpirationTime >= renderExpirationTime)
                ) {
                   
                   
                  return updateSuspenseComponent(
                    current,
                    workInProgress,
                    renderExpirationTime,
                  );