From: Alex Monk <krenair@gmail.com>
Date: Wed, 13 Mar 2013 15:43:27 +0000 (+0000)
Subject: Fix Ifb93e49b
X-Git-Tag: 1.31.0-rc.0~20358^2
X-Git-Url: http://git.cyclocoop.org/data/Luca_Pacioli_%28Gemaelde%29.jpeg?a=commitdiff_plain;h=ddee066b412c6606b90617b0dc465cb419efcd29;p=lhc%2Fweb%2Fwiklou.git

Fix Ifb93e49b

This commit caused a PHP notice if you tried to use diff=prev with an
oldid which was the first revision of the page.

Change-Id: I4c4ccb9a0c8d82e104723a2e72f1c699e2fc249b
---

diff --git a/includes/diff/DifferenceEngine.php b/includes/diff/DifferenceEngine.php
index 421bee9767..0f3c77ffbf 100644
--- a/includes/diff/DifferenceEngine.php
+++ b/includes/diff/DifferenceEngine.php
@@ -267,6 +267,8 @@ class DifferenceEngine extends ContextSource {
 		$deleted = $suppressed = false;
 		$allowed = $this->mNewRev->userCan( Revision::DELETED_TEXT, $user );
 
+		$revisionTools = array();
+
 		# mOldRev is false if the difference engine is called with a "vague" query for
 		# a diff between a version V and its previous version V' AND the version V
 		# is the first version of that article. In that case, V' does not exist.
@@ -292,7 +294,6 @@ class DifferenceEngine extends ContextSource {
 				$samePage = false;
 			}
 
-			$revisionTools = array();
 			if ( $samePage && $this->mNewPage->quickUserCan( 'edit', $user ) ) {
 				if ( $this->mNewRev->isCurrent() && $this->mNewPage->userCan( 'rollback', $user ) ) {
 					$rollbackLink = Linker::generateRollback( $this->mNewRev, $this->getContext() );