[Bug]: Ghost/Double characters appear during Zsh Tab completion (Redraw issue)

[amchii]

Current Behavior

I am experiencing a visual glitch where characters are duplicated (ghost characters) when using Tab completion in Zsh. For example, when I type do and press Tab, the terminal renders dd (double 'd') at the prompt line, even though the underlying command is correct.

https://github.com/user-attachments/assets/775db273-3dff-4228-9dfc-b224884508e0

Expected Behavior

Normal as in iTerm2.

Steps To Reproduce

Wave + zsh + oh-my-zsh, with "agnoster" theme.

ZSH_THEME="agnoster"

Wave Version

v0.13.1

Platform

macOS

OS Version/Distribution

No response

Architecture

arm64

Anything else?

No response

Questionnaire

• [ ] I'm interested in fixing this myself but don't know where to start
• [ ] I would like to fix and I have a solution
• [ ] I don't have time to fix this right now, but maybe later

[coderabbitai[bot]]

📝 CodeRabbit Plan Mode

Generate an implementation plan and prompts that you can use with your favorite coding agent.

• [ ] Create Plan

Examples

• Example 1
• Example 2

---

🔗 Similar Issues

Possible Duplicates

• ISSUE-1633

Related Issues

• https://github.com/wavetermdev/waveterm/issues/1898
• https://github.com/wavetermdev/waveterm/issues/1633
• https://github.com/wavetermdev/waveterm/issues/2471
• https://github.com/wavetermdev/waveterm/issues/2489
• https://github.com/wavetermdev/waveterm/issues/1035

👤 Suggested Assignees

• nicholaslck
• Real-YueWu
• yaolifeng0629
• jav-ed
• ShadowArcanist

---

🧪 Issue enrichment is currently in open beta.

You can configure auto-planning by selecting labels in the issue_enrichment configuration.

To disable automatic issue enrichment, add the following to your .coderabbit.yaml:

issue_enrichment:
  auto_enrich:
    enabled: false

💬 Have feedback or questions? Drop into our discord!