Extracted from https://github.com/facebook/react/issues/12643.

We're currently diff a host node in the complete phase even if it has bailed out in the begin phase. By itself, this just means we're doing a little bit more work than necessary. But it also has some observable effects. In particular, https://github.com/facebook/react/issues/13424 (which by itself would be very rare and probably not worth fixing) is made worse because we end up committing update to inputs from another component.

I have a fix for this in https://github.com/facebook/react/pull/13423. Filing this for posterity.
'whether the callback has already been scheduled.',
        );
      }
      scheduledCallback = callback;
      return 0;
    },
    cancelDeferredCallback() {
      if (scheduledCallback === null) {
        throw new Error('No callback is scheduled.');
      }
      scheduledCallback = null;
    },
    scheduleTimeout: setTimeout,
    cancelTimeout: clearTimeout,
    noTimeout: -1,
    prepareForCommit(): void {},
    resetAfterCommit(): void {},
    now(): number {
      return elapsedTimeInMs;
    },
    isPrimaryRenderer: true,
    supportsHydration: false,
  };
  const hostConfig = useMutation
    ? {
        ...sharedHostConfig,
        supportsMutation: true,
        supportsPersistence: false,
        commitMount(instance: Instance, type: string, newProps: Props): void {