It seems like this was a bug that only happened with the backported input stack in x1.11. x1.12 in quantal and x1.13 in my ppa didn't show this problem. As such it only ever affected precise.
It seems like this was a bug that only happened with the backported input stack in x1.11. x1.12 in quantal and x1.13 in my ppa didn't show this problem. As such it only ever affected precise.