Thread:Feedback/Thread history

I just changed the thread subject here and then changed it back:

http://liquidthreads.labs.wikimedia.org/w/index.php?title=Thread:Feedback/Some_usability_feedback&lqt_method=thread_history

The thread history correctly says Changed subject from "Some usability feedback" to "Usability feedback" but incorrectly says "Changed subject from "Some usability feedback" to "Some usability feedback"

It should say Changed subject from "Usability feedback" to "Some usability feedback"