Customize: In `WP_Customize_Widgets::capture_filter_pre_update_option()`, return the filtered value instead of `null` when bailing early for ignored options.

Props dlh.
Fixes #47715.
Built from https://develop.svn.wordpress.org/trunk@45644


git-svn-id: http://core.svn.wordpress.org/trunk@45455 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-customize-widgets.php

@@ -1971,7 +1971,7 @@ final class WP_Customize_Widgets {
 	 */
 	public function capture_filter_pre_update_option( $new_value, $option_name, $old_value ) {
 		if ( $this->is_option_capture_ignored( $option_name ) ) {
-			return;
+			return $new_value;
 		}
 
 		if ( ! isset( $this->_captured_options[ $option_name ] ) ) {

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45643';
+$wp_version = '5.3-alpha-45644';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.