/undo adds/resets files that were previously deleted

### Describe the bug

if a project is in a git repo and a user calls `/undo` it somehow retrieves+restores deleted files from git, and even reset changes to files in situations where no files were changed via copilot

### Affected version

1.0.59

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

_No response_