From bc62ecfef5519c3dd1ddd4b49cd80fbbc2a0dce5 Mon Sep 17 00:00:00 2001
From: Peng Lyu <penn.lv@gmail.com>
Date: Thu, 4 Dec 2025 18:05:28 -0800
Subject: [PATCH] fix #281147 (#2418)

---
 .../vscode-node/copilotCLIChatSessionsContribution.ts        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts b/extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts
index 2079c18c0ac..de5513dbcda 100644
--- a/extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts
+++ b/extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts
@@ -347,8 +347,13 @@ export class CopilotCLIChatSessionContentProvider extends Disposable implements
 			const worktreeRelativePath = this.worktreeManager.getWorktreeRelativePath(copilotcliSessionId);
 			if (worktreeRelativePath) {
 				options[ISOLATION_OPTION_ID] = getLockedIsolationOption(worktreeRelativePath);
+			} else {
+				options[ISOLATION_OPTION_ID] = disabledIsolationLocked;
 			}
+		} else if (existingSession) {
+			options[ISOLATION_OPTION_ID] = disabledIsolationLocked;
 		}
+
 		const history = existingSession?.object?.getChatHistory() || [];
 		existingSession?.dispose();
 		// Always keep track of this in memory.