Fixed notice

diff --git a/includes/SpecialPreferences.php b/includes/SpecialPreferences.php
index 795c661..3a1b38e 100644 (file)
--- a/includes/SpecialPreferences.php
+++ b/includes/SpecialPreferences.php
@@ -449,7 +449,7 @@ class PreferencesForm {
                #
                $wgOut->addHTML("<fieldset>");
                foreach ( $togs as $tname => $ttext ) {
-                       if( !$this->mUsedToggles[$tname] ) {
+                       if( !array_key_exists( $tname, $this->mUsedToggles ) ) {
                                $wgOut->addHTML( $this->getToggle( $tname ) );
                        }
                }