Appears to be a dupe of the line above it, and ParserOptions::initialiseFromUser...

diff --git a/includes/SpecialPreferences.php b/includes/SpecialPreferences.php
index a06bf79..39f2fc5 100644 (file)
--- a/includes/SpecialPreferences.php
+++ b/includes/SpecialPreferences.php
@@ -334,7 +334,6 @@ class PreferencesForm {
                }
 
                $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
-               $po = ParserOptions::newFromUser( $wgUser );
                $this->mainPrefsForm( $error === false ? 'success' : 'error', $error);
        }