Originally posted by seven
In fact, with the old rule if you had 4 players of one nationality, these 4 players were placed in one different quarter each, so they couldn't meet before semi-finals.
With the new rule, only the first and second are separated in different halves, and the only rule for the 3rd and 4th is that they shouldn't meet one of the others in the first round (but possibly in the second...)
The rule I was quoting is the official precise rule, not an old copy paste or else, and if you have a look on the way animated draws are presented on worldbadminton.net you'll see that this is precisely what is done!!