Unity 4.6 scrollbar defaults to wrong position with grid layout

I have a gallery of items dynamically populated at run-time time with Unity 4.6’s amazing GUI tools. It uses a scroll rect to handle overflow and a grid layout component. The problem is whenever I add a new item to the gallery, it moves the scrollbar to the center instead of the top. There must be a simple way to make new items not force scroll to the center and instead act like a W3C box model gallery you commonly see on the internet.

For now I’ve created a scrollbar manager script that can be used to enforce a new scroll position on demand. Hopefully there is a more natural solution to this, but maybe not.

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

namespace Menu {
	public class ScrollbarManager : MonoBehaviour {
		Scrollbar scrollH;
		Scrollbar scrollV;
		
		void Awake () {
			ScrollRect rect = GetComponent<ScrollRect>();
			scrollH = rect.horizontalScrollbar;
			scrollV = rect.verticalScrollbar;
		}
		
		void Start () {
			ForceScroll(1f);
		}

		public void ForceScroll (float pos) {
			if (scrollH) scrollH.value = pos;
			if (scrollV) scrollV.value = pos;
		}
	}
}