codex - 💡(How to fix) Fix Codex App Git diff panel shows all repository files as deleted even though local and origin branches are identical [1 participants]

What version of the Codex App are you using (From “About Codex” dialog)?

26.429.30905

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64; repository opened from WSL2: Linux 6.6.87.2-microsoft-standard-WSL2 x86_64 x86_64

What issue are you seeing?

The Codex App Git/diff panel incorrectly shows the repository as having a massive deletion diff.

In the right-side Git panel, the branch comparison shows:

+0 -54,540
main -> origin/main

What steps can reproduce the bug?

1. Open the repository in Codex App.
2. Open the right-side Git/diff panel.
3. Compare main -> origin/main.
4. Observe that the panel shows a large deletion count, for example +0 -54,540.
5. Open any file in the diff view.
6. Observe that the entire file content is shown as red deletions.

I tried restarting Codex App and refreshing the panel, but the issue still appears.

Git CLI shows no actual diff:

git status --porcelain=v1 --branch --untracked-files=all

Output:

## main...origin/main

git diff --shortstat
git diff --cached --shortstat
git diff --shortstat HEAD origin/main

All three commands produce no output.

git rev-parse main origin/main

Output:

a20326600185bcc23357a9ca580a700c8e289aa5
a20326600185bcc23357a9ca580a700c8e289aa5

git rev-parse main^{tree}
git rev-parse origin/main^{tree}

Output:

8abde62245d1a3a2e0a2c71094fc0cac0db0be56
8abde62245d1a3a2e0a2c71094fc0cac0db0be56

What is the expected behavior?

The Codex App Git/diff panel should show no file changes when main and origin/main point to the same commit/tree.

It should not render every file as deleted when Git CLI reports no diff.

Additional information

This repository was originally created/cloned outside Codex App, likely from VS Code, but it is a normal Git repository.

The repository path is:

/home/po120/Git/OmniGrimoire

The .git path is a normal directory:

git rev-parse --git-dir

Output:

.git

The repository is not a linked worktree:

git worktree list --porcelain

Output:

worktree /home/po120/Git/OmniGrimoire
HEAD a20326600185bcc23357a9ca580a700c8e289aa5
branch refs/heads/main

Remote configuration:

git config --get-regexp '^branch\.main\.|^remote\.origin\.'

Output:

remote.origin.url https://github.com/Lianye-Scythe/OmniGrimoire.git
remote.origin.fetch +refs/heads/*:refs/remotes/origin/*
branch.main.remote origin
branch.main.merge refs/heads/main

Remote check:

git ls-remote origin refs/heads/main

Output:

a20326600185bcc23357a9ca580a700c8e289aa5	refs/heads/main

This looks like the Codex App UI may be failing to read or materialize one side of the comparison tree, causing the diff view to render every file as deleted.