popsize different to refpoints

[adminy]

https://github.com/adanjoga/nsga3/blob/00d88fa451d16275a0709d1bdc463effc905166b/src/nsga3.h#L268

I added a print statement

printf(">P:%d R:%lu<", popsize, refepoints.size());

And I have noticed that popsize is 92 while refepoints.size() is 91. Why is that?