From 9b7577420d947e32fc43ad74c0497be24f180938 Mon Sep 17 00:00:00 2001
From: Megan Rogge <merogge@microsoft.com>
Date: Thu, 12 May 2022 14:24:28 -0700
Subject: [PATCH] Fix #148957 (#149392)

---
 .../workbench/contrib/terminal/browser/xterm/decorationAddon.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vs/workbench/contrib/terminal/browser/xterm/decorationAddon.ts b/src/vs/workbench/contrib/terminal/browser/xterm/decorationAddon.ts
index 825b5173d4f..d4dba2076d2 100644
--- a/src/vs/workbench/contrib/terminal/browser/xterm/decorationAddon.ts
+++ b/src/vs/workbench/contrib/terminal/browser/xterm/decorationAddon.ts
@@ -217,7 +217,7 @@ export class DecorationAddon extends Disposable implements ITerminalAddon {
 			if (beforeCommandExecution && !this._placeholderDecoration) {
 				this._placeholderDecoration = decoration;
 				this._placeholderDecoration.onDispose(() => this._placeholderDecoration = undefined);
-			} else {
+			} else if (!this._decorations.get(decoration.marker.id)) {
 				decoration.onDispose(() => this._decorations.delete(decoration.marker.id));
 				this._decorations.set(decoration.marker.id,
 					{