Duplicate session names when multiple sessions share the same git branch

Problem

When opening multiple Claude Code sessions from the same git branch, all sessions get the exact same auto-generated name (the branch name). This makes it impossible to distinguish between sessions in the session list.

Example: Two sessions opened on branch ACME-00000/version-0-1-10 are both named ACME-00000/version-0-1-10.

Expected behavior

Session names should be unique. When a session name already exists, Claude Code should disambiguate — e.g., by appending a counter ((2), (3)) or a timestamp.

Current workaround

Manually renaming sessions, which shouldn't be necessary.

Environment

• Claude Code on Windows 11
• Multiple sessions opened from the same branch in the same repo