Relaunch on error's behavior?

Continuing off from [this](https://github.com/an-tao/trantor/issues/324) trantor issue, it seems if drogon has the relaunchOnError option enabled, it interferes with other libraries and causes them to crash, and it completely disables `trantor::ConcurrentTaskQueue::runTaskInQueue`, which in turn stopped all database operations.

What is the behavior of that option? It interfered with [nanomq](https://github.com/nanomq/nanomq.git)'s concurrency model too once it got turned on, and started causing crashes.