Ticket #33499: 33499.patch

src/wp-includes/class-wp-customize-setting.php

@@ -355 +355 @@
          * @return bool The result of saving the value.
          */
         protected function _update_option( $value ) {
+                /**
+                 * Filter the `$autoload` parameter value to use when updating the option.
+                 *
+                 * The dynamic portion of the hook name, `$this->id_date['base']`,
+                 * refers to the base slug of the setting name.
+                 *
+                 * @see update_option().
+                 *
+                 * @since x.y.z
+                 *
+                 * @param mixed $autoload The parameter value. Default null.
+                 */
+                $autoload = apply_filters( 'customize_autoload_' . $this->id_data['base'], null );
+
                 // Handle non-array option.
                 if ( empty( $this->id_data[ 'keys' ] ) )
-                        return update_option( $this->id_data[ 'base' ], $value );
+                        return update_option( $this->id_data[ 'base' ], $value, $autoload );
 
                 // Handle array-based options.
                 $options = get_option( $this->id_data[ 'base' ] );
                 $options = $this->multidimensional_replace( $options, $this->id_data[ 'keys' ], $value );
                 if ( isset( $options ) )
-                        return update_option( $this->id_data[ 'base' ], $options );
+                        return update_option( $this->id_data[ 'base' ], $options, $autoload );
         }
 
         /**