From: Aaron Schulz <aschulz@wikimedia.org>
Date: Wed, 13 Jan 2016 21:50:18 +0000 (-0800)
Subject: Avoid races on null revision insertion
X-Git-Tag: 1.31.0-rc.0~8217^2
X-Git-Url: http://git.cyclocoop.org/%22.%24redirect_annul.%22?a=commitdiff_plain;h=279281b94a4cab497318d5a41ae6e248ed93b329;p=lhc%2Fweb%2Fwiklou.git

Avoid races on null revision insertion

Bug: T51581
Change-Id: I7bfa9a4b20458e76ab3c4659e7041cd68aac13a4
---

diff --git a/includes/Revision.php b/includes/Revision.php
index 1d7ac72542..9373e4009a 100644
--- a/includes/Revision.php
+++ b/includes/Revision.php
@@ -1628,8 +1628,10 @@ class Revision implements IDBAccessObject {
 			array(
 				'page_id' => $pageId,
 				'page_latest=rev_id',
-				),
-			__METHOD__ );
+			),
+			__METHOD__,
+			array( 'FOR UPDATE' ) // T51581
+		);
 
 		if ( $current ) {
 			if ( !$user ) {