From e9fda919111e1074a6e6e50afb637a7b588b6d4c Mon Sep 17 00:00:00 2001
From: Kai Hao <kevin830726@gmail.com>
Date: Wed, 21 Jul 2021 19:07:50 +0800
Subject: [PATCH] Call onChangeSectionExpanded conditionally

---
 packages/customize-widgets/src/controls/sidebar-section.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/customize-widgets/src/controls/sidebar-section.js b/packages/customize-widgets/src/controls/sidebar-section.js
index 4d1b00ed716ed..a30f4c242b035 100644
--- a/packages/customize-widgets/src/controls/sidebar-section.js
+++ b/packages/customize-widgets/src/controls/sidebar-section.js
@@ -45,7 +45,7 @@ export default function getSidebarSection() {
 				..._args,
 				completeCallback() {
 					controls.forEach( ( control ) => {
-						control.onChangeSectionExpanded( expanded, args );
+						control.onChangeSectionExpanded?.( expanded, args );
 					} );
 					_args.completeCallback?.();
 				},