local.rs's archive_git handed git the canonical \\?\ path the product's
git already no longer sees. Same helper (root::plain_path). The other
Command::new("git") tests are Unix-only files (backups.rs, format_upgrade,
open_while_held) or use paths from tempfile, not canonicalize.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp