From 7389d070572b08048132043ebecd10ad70a9b2ef Mon Sep 17 00:00:00 2001
From: Aaron Schulz <aaron@users.mediawiki.org>
Date: Fri, 21 Mar 2008 06:28:02 +0000
Subject: [PATCH] $value should come in as a string (if it doesn't, trim() will
 cast it to one anyway). Once trimmed, a truly empty list should be "" not
 "0". This fixes the massive namespace param breakage.

---
 includes/api/ApiBase.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/api/ApiBase.php b/includes/api/ApiBase.php
index cc88e97320..7568157d8b 100644
--- a/includes/api/ApiBase.php
+++ b/includes/api/ApiBase.php
@@ -503,7 +503,7 @@ abstract class ApiBase {
 	* @return (allowMultiple ? an_array_of_values : a_single_value) 
 	*/
 	protected function parseMultiValue($valueName, $value, $allowMultiple, $allowedValues) {
-		if( !trim( $value ) )
+		if( trim($value) === "" )
 			return array();
 		$valuesList = explode('|', $value);
 		if (!$allowMultiple && count($valuesList) != 1) {
-- 
2.20.1