Undo/revert fails for files with non-ASCII filenames on Windows

[yimingll]

Description

On Windows, the /undo command fails to revert files with non-ASCII characters in their filenames (e.g., Chinese, Japanese, Korean).

Steps to Reproduce

1. Create a project with a file named with non-ASCII characters (e.g., 公共函数.cpp)
2. Make changes to the file using opencode
3. Run /undo

Expected Behavior

The file should be reverted to its previous state.

Actual Behavior

• Files with ASCII names are reverted correctly
• Files with non-ASCII names are NOT reverted (fail silently)

Root Cause

Bun's dollar template literal on Windows incorrectly handles variable interpolation, causing git commands to fail for non-ASCII paths.

Environment

• OS: Windows 11
• opencode version: 1.1.34

Workaround

Set global git config:

git config --global core.quotepath false

Related

• PR fix: Windows snapshot fails with non-ASCII filenames (Chinese, Japanese, etc.) #9844 provides a fix

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• /undo and /timeline undo does not revert file edits #4704: /undo and /timeline undo does not revert file edits (Windows 11 file revert issue)
• File paths with special characters (#) or non-ASCII characters fail to load in Diff/Review view #9804: File paths with special characters (#) or non-ASCII characters fail to load in Diff/Review view (non-ASCII path handling)
• OpenCode 桌面版 不支持读取中文名文件 #8172: OpenCode 桌面版 不支持读取中文名文件 (Chinese/non-ASCII filename support issue)

Feel free to ignore if none of these address your specific case.

[github-actions]

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