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.
import {disableLogs, reenableLogs} from 'shared/ConsolePatchingDev';
const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;
let didReceiveUpdate: boolean = false;
let didWarnAboutBadClass;
let didWarnAboutModulePatternComponent;
let didWarnAboutContextTypeOnFunctionComponent;
let didWarnAboutGetDerivedStateOnFunctionComponent;
let didWarnAboutFunctionRefs;
export let didWarnAboutReassigningProps;
let didWarnAboutRevealOrder;
let didWarnAboutTailOptions;
let didWarnAboutDefaultPropsOnFunctionComponent;
if (__DEV__) {
  didWarnAboutBadClass = {};
  didWarnAboutModulePatternComponent = {};
  didWarnAboutContextTypeOnFunctionComponent = {};
  didWarnAboutGetDerivedStateOnFunctionComponent = {};
  didWarnAboutFunctionRefs = {};
  didWarnAboutReassigningProps = false;
  didWarnAboutRevealOrder = {};
  didWarnAboutTailOptions = {};
  didWarnAboutDefaultPropsOnFunctionComponent = {};
}
export function reconcileChildren(
  current: Fiber | null,
  workInProgress: Fiber,
  nextChildren: any,
  renderExpirationTime: ExpirationTime,
) {
  if (current === null) {