Customizer: Fix usage of `jQuery.contains()` allowing `active` state changes to again animate control visibility.

Aligns usage of `jQuery.contains()` in a control's `onChangeActive` method with the existing usage in the corresponding `onChangeActive` method for panels and sections.

Props nikeo.
Fixes #33509.

Built from https://develop.svn.wordpress.org/trunk@34557


git-svn-id: http://core.svn.wordpress.org/trunk@34521 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/customize-controls.js

@@ -1535,7 +1535,7 @@
 				return;
 			}
 
-			if ( ! $.contains( document, this.container ) ) {
+			if ( ! $.contains( document, this.container[0] ) ) {
 				// jQuery.fn.slideUp is not hiding an element if it is not in the DOM
 				this.container.toggle( active );
 				if ( args.completeCallback ) {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34556';
+$wp_version = '4.4-alpha-34557';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.