Repro case with a master build: https://codesandbox.io/s/stoic-mcnulty-dhygf?file=/src/App.js:668-703

Expected: we see content after a second.
Actual: fallback never resolves.

This happens in a sequence of:

1. Normal update
   - which suspends
2. Idle update
   - which also suspends
3. An unrelated normal update immediately followed by a ping (so they're batched)
   - here, we decide to stay on fallback, but should've shown the content

If you remove `_setVersion(v => v + 1);` on line 44 then the issue goes away.
fiber: Fiber,
  renderExpirationTime: ExpirationTime,
) {
  if (fiber.expirationTime < renderExpirationTime) {
    fiber.expirationTime = renderExpirationTime;
  }
  const alternate = fiber.alternate;
  if (alternate !== null && alternate.expirationTime < renderExpirationTime) {
    alternate.expirationTime = renderExpirationTime;
  }
  scheduleWorkOnParentPath(fiber.return, renderExpirationTime);
}
function propagateSuspenseContextChange(