Ticket #32848: 32848.diff

src/wp-includes/option.php

@@ -326 +326 @@
 
         if ( ! defined( 'WP_INSTALLING' ) ) {
                 $alloptions = wp_load_alloptions();
-                if ( isset( $alloptions[$option] ) ) {
+                if ( array_key_exists( $option, $alloptions ) ) {
                         $alloptions[ $option ] = $serialized_value;
                         wp_cache_set( 'alloptions', $alloptions, 'options' );
                 } else {