MessageSendTaskDelegate does not throw BPMN Error if ExceptionToErrorBoundaryEventTranslationErrorHandler is used

[wetret]

When a process executes a class that implements the MessageSendTask interface and uses an ExceptionToErrorBoundaryEventTranslationErrorHandler, the process execution stops unexpectedly.

I would expect the handler to translate the exception into a BpmnError, allowing the process execution to continue via the modeled ErrorBoundaryEvent.