Race condition in premature snapshot termination cleanup

                    if (interrupted.get() || !isRunning()) {
                        // We were interrupted or were stopped while reading the tables,
                        // so roll back the transaction and return immediately ...
                        logger.info("Step {}: rolling back transaction after abort", step++);
                        mysql.connection().rollback();
                        metrics.snapshotAborted();
                        rolledBack = true;
                    }