Crash on objc_msgSend

[MaxGabriel]

I forget what causes objc_msgSend crashes. Is it overreleasing things? Anyway, here's the .crash file:

https://www.dropbox.com/s/3ezxn5d8khq05pn/xkcd%20%203-21-13%2011-58%20PM.crash

[josharian]

Thanks. Posted a symbolicated version at https://gist.github.com/josharian/5242376. It's not obvious at all to me what caused this, but I'll dig at it a bit next time I'm paying attention to the xkcd app (which doesn't happen very often, admittedly).