Method errors

src/model/ModelMerger.cpp:173–177

  }

  std::vector<LogMessage> ModelMerger::errors() const {
    std::vector<LogMessage> result = m_logSink.logMessages();
    result.erase(std::remove_if(result.begin(), result.end(), [](const auto& logMessage) { return logMessage.logLevel() <= Warn; }), result.end());
    return result;
  }

  boost::optional<UUID> ModelMerger::getNewModelHandle(const UUID& currentHandle) {
    auto it = m_currentToNewHandleMapping.find(currentHandle);