Fix "Unsupported operand types at thumb.php on line 429"

Return type of $handler->parseParamString() wasn't evaluated,
instead $handler value was compared again

Bug: 55437
Change-Id: Iedb940d9f1ad4d137b9732e7e624e55d05bc2c96

1 files changed, 1 insertions, 1 deletions

diff --git a/thumb.php b/thumb.php
index ef2af249397f..4ffefb686c8c 100644
--- a/thumb.php
+++ b/thumb.php
@@ -425,7 +425,7 @@ function wfExtractThumbParams( $file, $params ) {
 	if ( $handler && $fileNamePos !== false ) {
 		$paramString = substr( $thumbname, 0, $fileNamePos - 1 );
 		$extraParams = $handler->parseParamString( $paramString );
-		if ( $handler !== false ) {
+		if ( $extraParams !== false ) {
 			return $params + $extraParams;
 		}
 	}