Ticket #33428: 33428.3.diff

src/wp-admin/js/customize-controls.js

@@ -284 +284 @@
                  * @param {Object}  args.duration
                  * @param {Object}  args.completeCallback
                  */
-                onChangeActive: function ( active, args ) {
+                onChangeActive: function( active, args ) {
                         var duration, construct = this;
+                        if ( args.unchanged ) {
+                                if ( args.completeCallback ) {
+                                        args.completeCallback();
+                                }
+                                return;
+                        }
+
                         duration = ( 'resolved' === api.previewer.deferred.active.state() ? args.duration : 0 );
                         if ( ! $.contains( document, construct.container[0] ) ) {
                                 // jQuery.fn.slideUp is not hiding an element if it is not in the DOM
@@ -1497 +1504 @@
                  * @param {Callback} args.completeCallback
                  */
                 onChangeActive: function ( active, args ) {
+                        if ( args.unchanged ) {
+                                if ( args.completeCallback ) {
+                                        args.completeCallback();
+                                }
+                                return;
+                        }
+
                         if ( ! $.contains( document, this.container ) ) {
                                 // jQuery.fn.slideUp is not hiding an element if it is not in the DOM
                                 this.container.toggle( active );