/undo will do a git checkout which modify ALL files mtime

[jasonwch]

Description

This is a serious bug (found out from log), when I use /undo command, it will perform the following action:

git --git-dir= --work-tree=/MY_GIT_WORKING_FOLDER checkout -- .

This make ALL tracked files inside "/MY_GIT_WORKING_FOLDER" update its modified time. Now I cannot restore the original file modified timestamp. I can only do git restore-mtime to restore to initial commit timestamp.

Please fix this seriously

Plugins

Nip

OpenCode version

1.14.31

Steps to reproduce

using /undo at web interface (should be the same as TUI)

Screenshot and/or share link

NIL

Operating System

Ubuntu 24.04

Terminal

Web

[github-actions]

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

• fix(snapshot): /redo touches all files unnecessarily, destroying date modified metadata and triggering editor reload prompts #15391: Same root cause — git checkout during /undo or /redo touches all files unnecessarily, destroying date modified (mtime) metadata. That issue was filed specifically about /redo but covers the same underlying snapshot restore mechanism.

[jasonwch]

Seems the mtime reset happen if I perform /undo+/redo OR /undo twice. If I only perform one time /undo. It didnt trigger the git action to reset mtime. Can someone look into this? Thanks