When the user wants to edit the title of an issue, the title can be edited but cannot be saved with the new value.
I was just able to edit the title of this issue.
Once you are done editing you must hit enter. If you click outside the edit box or hit escape it will cancel the edit.
Let me know if this does not clear things up for you.
Ok you're right :)
I assumed clicking somewhere else would make it save automatically.