NoMethodError: undefined method `fetch' for nil (NoMethodError) · Issue #18 · sue445/isucon13-20231125

https://sue445.sentry.io/share/issue/90a9b3def2814770b1093fbaaa5b874d/ NoMethodError: undefined method `fetch' for nil (NoMethodError) comment_owner_model = tx.xquery('SELECT * FROM users WHERE id ...