[tracker] tracker-needle: Fix the result store to return the correct n_children for the root.

[Martyn James Russell <mr src gnome org>]

commit 975cca3aceff736feb8a2708549444e76a349aac
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Mar 17 18:44:53 2011 +0100

    tracker-needle: Fix the result store to return the correct n_children for the root.

 src/tracker-needle/tracker-result-store.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-needle/tracker-result-store.vala b/src/tracker-needle/tracker-result-store.vala
index 0566781..cfd7d71 100644
--- a/src/tracker-needle/tracker-result-store.vala
+++ b/src/tracker-needle/tracker-result-store.vala
@@ -471,7 +471,7 @@ public class Tracker.ResultStore : Gtk.TreeModel, GLib.Object {
 
 	public int iter_n_children (Gtk.TreeIter? iter) {
 		if (iter == null) {
-			return filled_categories_count ();
+			return categories.length;
 		}
 
 		if (iter.user_data2 != null) {