As far as I know, no one picked this up yet.
... and I' ve found it. It is the following: http://moodle.org/mod/forum/discuss.php?d=27431#129134
I 'd also like to hear people from that discussion ( namely: Tomaz Savodnik, N. Hansen, Samuli Karevaara, Jon Papaioannou) what they do now about it. I 'll post soon my opinions and (not general enough, I 'm afraid) solutions for this, something similar to what Robert Brenstein said in the link above.