Fast state transition caused segfault

[rbtchun3]

Hey,

I got the error while spamming smacc with button press ros messages to trigger fast state transitions, ```__pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed

I wonder if any has seen this and possible way to debug this.

[pabloinigoblasco]

Hello. We need more information to reproduce that. Could you please describe in more detail what did you do to get those messages?