CVE: https://github.com/discourse/discourse/security/advisories/GHSA-hcgf-hg2g-mw78
パッチ: https://github.com/discourse/discourse/commit/7d484864fe91ff79c478f57e7ddb1235d701921e
使用法: fix_quote_attribution("Username|", <limit>, <dry_run>)
ここで "Username|" は引用属性内の一意な検索文字列です