AGENT: Great catch on syncing pending values when a field is touched!

However, there is an inconsistency introduced by putting child.flushSync() directly in the descendant loop. If a child control skips validation (for example, if it's hidden or disabled), child.markAsTouchedInternal() will return early and will not iterate over its own descendants. Because of the unconditional child.flushSync() in the parent's loop, this results in:

1. The hidden/disabled direct child is flushed.
2. The grandchildren of that hidden/disabled child are not flushed.

To fix this inconsistency and fulfill the goal of flushing exactly when a node is marked as touched, we can move this.flushSync() directly into markAsTouchedInternal() right after marking the state, and remove the manual flush from the markAsTouched wrapper.

Here is what that would look like:

  markAsTouched(options?: MarkAsTouchedOptions): void {
    if (this.structure.isOrphaned()) {
      return;
    }
    untracked(() => {
      this.markAsTouchedInternal(options);
      // Removed this.flushSync() here
    });
  }

  markAsTouchedInternal(options?: MarkAsTouchedOptions): void {
    if (this.structure.isOrphaned()) {
      return;
    }
    if (this.validationState.shouldSkipValidation()) {
      return; // Hidden/Disabled fields correctly bail out BEFORE flushing
    }
    this.nodeState.markAsTouched();
    this.flushSync(); // Flush happens EXACTLY when marked as touched
    
    if (options?.skipDescendants) {
      return;
    }
    for (const child of this.structure.children()) {
      child.markAsTouchedInternal();
      // Removed child.flushSync() here
    }
  }

This ensures that hidden/disabled fields (and their descendants) correctly bail out before flushing, keeping the tree consistent.