From 407ce43a5e0bb079b3d0db802a2f7367c2f97c99 Mon Sep 17 00:00:00 2001
From: Joao <mail@joaomoreno.com>
Date: Mon, 4 Sep 2017 11:02:38 +0200
Subject: [PATCH] fixes #33777

---
 src/vs/base/browser/ui/list/listWidget.ts | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/vs/base/browser/ui/list/listWidget.ts b/src/vs/base/browser/ui/list/listWidget.ts
index 4463fe444c0..3a4e10f7b26 100644
--- a/src/vs/base/browser/ui/list/listWidget.ts
+++ b/src/vs/base/browser/ui/list/listWidget.ts
@@ -84,14 +84,9 @@ class TraitRenderer<T, D> implements IRenderer<T, ITraitTemplateData>
 	}
 
 	splice(start: number, deleteCount: number): void {
-		for (let i = 0; i < deleteCount; i++) {
-			const key = `key_${start + i}`;
-			const data = this.rendered[key];
-
-			if (data) {
-				data.elementDisposable.dispose();
-			}
-		}
+		this.rendered
+			.filter(({ index }) => index >= start && index < start + deleteCount)
+			.forEach(({ templateData }) => templateData.elementDisposable.dispose());
 	}
 
 	disposeTemplate(templateData: ITraitTemplateData): void {