Ticket #43333: customizer-menu-search-43333.patch

customize-nav-menus.js

@@ -728 +728 @@
                         $( '#available-menu-items .menu-item-handle.item-added' ).removeClass( 'item-added' );
 
                         this.$search.val( '' );
+
+                        // Clear search fields.
+                        if ( this.$clearResults.hasClass( 'open' ) ) {
+                                this.$clearResults.removeClass( 'open' );
+                        }
+                        
+                        if ( this.$clearResults.hasClass( 'is-visible' ) ) {
+                                this.$clearResults.removeClass( 'is-visible' );
+                        }
+
+                        if ( this.sectionContent.is(':visible') ) {
+                                this.sectionContent.hide();
+                        }
                 },
 
                 // Add a few keyboard enhancements to the panel.