---
id: "bug-1618"
status: "fixed"
status_updated: "2026-09-24"
status_note: ""
component: "build"
severity: "unknown"
timestamp: "2026-08-21T00:00:00Z"
last_seen: "2026-09-19T09:00:00Z"
occurrences: 1
files: ["src/tools/test-dirty-fingerprint-nix-production-path.sh"]
tags: ["git", "pathspec", "worktree", "dirty-content-fingerprint", "task-6.3", "src/tools"]
related: []
legacy: true
---

# bug-1618: error: pathspec 'flake.nix' did not match any file(s) known to git

## Description
error: pathspec 'flake.nix' did not match any file(s) known to git

## Environment
_Not recorded (migrated from buglog.json)._

## Reproduction
_Not recorded (migrated from buglog.json)._

## Root cause
`git -C "$ISO_DIR" checkout -- "$EDIT_FILE_REL"` used the isolated worktree's ROOT ($ISO_DIR) as the -C directory while EDIT_FILE_REL was just "flake.nix" (unqualified), but the edited file actually lives at $ISO_DIR/src/flake.nix -- git resolves pathspecs relative to the -C directory, so "flake.nix" alone did not match anything from the worktree root. Unlike the sibling task 6.1/6.2 scripts (which edit README.md directly at the worktree ROOT, where this exact pattern is correct), this script's edit target is one level deeper inside src/, which the copied pattern did not account for.

## Fix
Changed both `git -C "$ISO_DIR" checkout -- "$EDIT_FILE_REL"` call sites to `git -C "$ISO_SRC" checkout -- "$EDIT_FILE_REL"` (ISO_SRC = $ISO_DIR/src), so the pathspec correctly resolves relative to the flake's own source directory where flake.nix actually lives.

## Verification
_Not recorded (migrated from buglog.json)._

## References
_Not recorded (migrated from buglog.json)._