Gaah this damn bug again, I've been trying to find its origin for a while now, but this points to a place that doesn't actually contain any code, which is the weirdest thing. I haven't been able to recreate it myself either.
It had only happened to one person so far as far as I know, so it's "good" to know it's not on his side only.
Thank you for reporting it, I'll look into it some more. If I still can't figure it out however it might have to wait until the next version...