From 326b1c4ceae9d6b0080ed2b6b5dfadadbfa31339 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@users.mediawiki.org>
Date: Tue, 10 Jul 2007 19:37:12 +0000
Subject: [PATCH] Fix regression caused by the namespace check on oldid
 override. Don't die if we don't have a valid title yet!

---
 includes/Wiki.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/includes/Wiki.php b/includes/Wiki.php
index 897a2d4258..31ecd89668 100644
--- a/includes/Wiki.php
+++ b/includes/Wiki.php
@@ -102,7 +102,8 @@ class MediaWiki {
 				$lang->findVariantLink( $title, $ret );
 
 		}
-		if ( $ret->getNamespace() != NS_SPECIAL && $oldid = $request->getInt( 'oldid' ) ) {
+		if ( $oldid = $request->getInt( 'oldid' )
+			&& ( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) ) {
 			// Allow oldid to override a changed or missing title.
 			$rev = Revision::newFromId( $oldid );
 			if( $rev ) {
-- 
2.20.1