From 58d0639ac12c61ba20ac333e19689c1a91bc2f48 Mon Sep 17 00:00:00 2001
From: Alex Ross <alros@microsoft.com>
Date: Fri, 2 Aug 2019 17:19:36 +0200
Subject: [PATCH] Workaround for #78388 (twistie not updating on has children
 change) (#78390)

* Workaround for #78388 (twistie not updating on has children change)

Fixes #78389
---
 src/vs/workbench/browser/parts/views/customView.ts | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/vs/workbench/browser/parts/views/customView.ts b/src/vs/workbench/browser/parts/views/customView.ts
index d6557daf7a1..b4ab237e31c 100644
--- a/src/vs/workbench/browser/parts/views/customView.ts
+++ b/src/vs/workbench/browser/parts/views/customView.ts
@@ -597,8 +597,16 @@ export class CustomTreeView extends Disposable implements ITreeView {
 	private async doRefresh(elements: ITreeItem[]): Promise<void> {
 		if (this.tree) {
 			this.refreshing = true;
-			await Promise.all(elements.map(element => this.tree.updateChildren(element, true)));
-			elements.map(element => this.tree.rerender(element));
+			const parents: Set<ITreeItem> = new Set<ITreeItem>();
+			elements.forEach(element => {
+				if (element !== this.root) {
+					const parent = this.tree.getParentElement(element);
+					parents.add(parent);
+				} else {
+					parents.add(element);
+				}
+			});
+			await Promise.all(Array.from(parents.values()).map(element => this.tree.updateChildren(element, true)));
 			this.refreshing = false;
 			this.updateContentAreas();
 			if (this.focused) {