We didn't get to this bug for more than 2 years, and it's not being considered for the upcoming 4.4. It's unlikely that it will ever be addressed so I'm suggesting to close it.
If you feel this needs to be addressed and want to work on it please remove cond nack and target accordingly.
This bug has been "fixed" (i.e. code integrated) on 8.2.0.
As far as I know, backporting is not planned for 7.x.
So I agree wih Michal that we should drop it.