Follow up r66566. Fixes uninited value check

diff --git a/includes/Skin.php b/includes/Skin.php
index c26a922..209b8f3 100644 (file)
--- a/includes/Skin.php
+++ b/includes/Skin.php
@@ -1994,7 +1994,7 @@ CSS;
                if( $wgUploadNavigationUrl ) {
                        $title = Title::newFromText( $wgUploadNavigationUrl );
                }
-               if( !$title ) {
+               if( !isset( $title ) ) {
                        $title = SpecialPage::getTitleFor('Upload');
                }