From 96d06bd9e4dcc618b7d224646f0dadeebb5aecdd Mon Sep 17 00:00:00 2001
From: Joao Moreno <joao.moreno@microsoft.com>
Date: Thu, 19 Jul 2018 10:10:09 +0200
Subject: [PATCH] fixes #52601

---
 src/vs/base/parts/tree/browser/treeView.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vs/base/parts/tree/browser/treeView.ts b/src/vs/base/parts/tree/browser/treeView.ts
index cf6dc5ab8ff..5d56011feac 100644
--- a/src/vs/base/parts/tree/browser/treeView.ts
+++ b/src/vs/base/parts/tree/browser/treeView.ts
@@ -220,7 +220,7 @@ export class ViewItem implements IViewItem {
 			this.element.removeAttribute('id');
 		}
 		if (this.model.hasChildren()) {
-			this.element.setAttribute('aria-expanded', String(!!this.model.isExpanded()));
+			this.element.setAttribute('aria-expanded', String(!!this._styles['expanded']));
 		} else {
 			this.element.removeAttribute('aria-expanded');
 		}