Atomic task modification inside handlers

[Groax256]

Hello,

Is there an official way to use external transactions inside custom handlers (FailureHandler, CompletionHandler etc.)?
ClientScheduler is not allowed to modify currently picked task and methods on ExecutionOperations are automatically commiting because they use internal TaskRepository.
Therefore currently there seems to be no way to atomically create a new task and also cancel or reschedule the task for which handler was called for.

Dummy example of the thing I'm talking about:

@Component
public class ExampleFailureHandler implements FailureHandler<String> {

    public static final TaskWithDataDescriptor<String> OTHER_TASK = new TaskWithDataDescriptor<>(
        "OtherJob",
        String.class
    );

    @Autowired
    @Lazy
    private SchedulerClient schedulerClient;

    @Override
    @Transactional
    public void onFailure(ExecutionComplete executionComplete, ExecutionOperations<String> executionOperations) {
        executionOperations.stop();
        schedulerClient.schedule(OTHER_TASK.instance(UUID.randomUUID().toString(), ""), Instant.now());
    }
}

By the time schedule method fails the currently processed task will be already gone.
Is it still not supported as per #276 or am I doing something wrong?