The v1.19.0 deploy's tests failed where build.yml's passed. A test stored a public remote post with no author id, and when the public timeline test ran after it, MastodonMapper.Statuses looked that null up in its accounts and answered 500. The mapper now skips such a post, and the test stores a real author. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2