LFR hasn't even existed in 4.2, it is a feature that was introduced in 4.3 ... so yeah, so much for backing up your claim ;-)
We comment the LFD system in 4.2, its pretty obvious that LFR is post 4.3.
Since I have seen none threads with this "already fixed in 4.2" workaround recently, I dared to share it with the community here. That is the purpose of these forums, if I am not wrong.