As per Haravikk Mistral's suggestion on SVC-2286 : "llRetainEvents(integer flag); This function allows you to specify whether you want to retain events during a state-transition by setting flag to TRUE (keep events) or FALSE (clear events). Default behaviour is llRetainEvents(FALSE) which is the same as it is now." This would allow the option of not flushing the queue, without changing existing behavior and breaking content.