Merged revisions 45750 via svnmerge from

svn://svn.silverstripe.com/silverstripe/modules/sapphire/branches/2.1.0-rc3oriwave2

........
  r45750 | sminnee | 2007-11-27 17:45:36 +1300 (Tue, 27 Nov 2007) | 1 line
  
  Fixed DataObjectSet::insertFirst() - it now uses a numeric key rather than null
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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@49791 467b73ca-7a2a-4603-9d3b-597d59a354a9

core/model/DataObjectSet.php

@@ -390,8 +390,8 @@ public function push($item, $key = null) {
 	 * @param string $key Key to index this DataObject by.
 	 */
 	public function insertFirst($item, $key = null) {
-		if($key != null) {
-			array_shift($this->items, $item);
+		if($key == null) {
+			array_unshift($this->items, $item);
 		} else {
 			// Not very efficient :-(
 			$newItems = array();