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.
);
        didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true;
      }
    }
    if (typeof Component.getDerivedStateFromProps === 'function') {
      const componentName = getComponentName(Component) || 'Unknown';
      if (!didWarnAboutGetDerivedStateOnFunctionComponent[componentName]) {
        console.error(
          '%s: Function components do not support getDerivedStateFromProps.',
          componentName,
        );
        didWarnAboutGetDerivedStateOnFunctionComponent[componentName] = true;
      }
    }
    if (
      typeof Component.contextType === 'object' &&
      Component.contextType !== null
    ) {
      const componentName = getComponentName(Component) || 'Unknown';
      if (!didWarnAboutContextTypeOnFunctionComponent[componentName]) {
        console.error(
          '%s: Function components do not support contextType.',
          componentName,
        );
        didWarnAboutContextTypeOnFunctionComponent[componentName] = true;
      }
    }
  }
}
function mountSuspenseState(