Ticket #28701: 28701.diff

src/wp-includes/option.php

@@ -512 +512 @@
         if ( ! defined( 'WP_INSTALLING' ) ) {
                 if ( 'yes' == $row->autoload ) {
                         $alloptions = wp_load_alloptions();
-                        if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {
+                        if ( is_array( $alloptions ) && array_key_exists( $option, $alloptions ) ) {
                                 unset( $alloptions[$option] );
                                 wp_cache_set( 'alloptions', $alloptions, 'options' );
                         }
-                } else {
-                        wp_cache_delete( $option, 'options' );
                 }
+
+                wp_cache_delete( $option, 'options' );
+
         }
         if ( $result ) {