Session rename reverts after pressing Enter

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When renaming a session by clicking the pencil icon and typing a new name, pressing Enter appears to save the name briefly, but it then reverts to the previous auto-generated title. The rename does not persist.

What Should Happen?

Steps to reproduce:

Open Claude Code desktop app
Hover over a session in the sidebar
Click the pencil (edit) icon
Type a new name
Press Enter
Expected: Session keeps the new name.

Result: Name reverts to the original auto-generated title after a few seconds.

OS: Windows 11

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code desktop app
2. Hover over a session in the sidebar
3. Click the pencil (edit) icon next to a session name
4. Type a new name
5. Press Enter
6. Observe: name briefly shows the new title, then reverts to the auto-generated name

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

latest

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

Clicking outside the input field instead of pressing Enter
also does not persist the rename. The issue appears to affect
all sessions regardless of length or content of the new name.