[BUG] Abnormal line spacing in v2.0.73

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?

After updating to v2.0.73, line breaks are rendered with excessive spacing compared to v2.0.72. This significantly hurts readability of the output.

Output language: Korean

What Should Happen?

Line spacing should render normally as it did in v2.0.72.

Error Messages/Logs

Steps to Reproduce

1. Update to v2.0.73
2. Send any message (especially in Korean)
3. Observe excessive vertical spacing between lines in the output

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.72

Claude Code Version

2.0.73

Platform

Other

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

Screenshots attached showing the difference between v2.0.72 (normal) and v2.0.73 (abnormal spacing).

2.0.72
<img width="989" height="200" alt="Image" src="https://github.com/user-attachments/assets/be89347f-5c6e-4b16-9294-da8ac1f16943" />

2.0.73
<img width="1006" height="328" alt="Image" src="https://github.com/user-attachments/assets/153eab80-3494-4afc-b1c1-dace875e41b7" />