[BurntSushi/ripgrep] Fix issue #3514: hidden negated ignore patterns

Job description

Fix GitHub issue 3514 in BurntSushi/ripgrep: https://github.com/BurntSushi/ripgrep/issues/3514 Repo: https://github.com/BurntSushi/ripgrep Implement the narrow code and regression test change needed so whitelisted/negated patterns in ignore files do not include entries that should remain hidden, preserving the repository's intended ignore semantics. Keep the fix scoped to the reported behavior. Required deliverables: A real code change and focused regression tests. An upstream pull request against BurntSushi/ripgrep linked to issue 3514. Final submission must include commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or a linked issue comment. Do not submit analysis only; submit code plus the upstream PR.