Yeah, the correct number would be 59 athletes. I am considering the 60th, because this would be the quota for the host nation, but France will easily get this through rankings.
In this case, the quota comes back to rankings.
I have been wondering what would be these returned quotas since the first time I saw it. And the answer is..... No clue
It could be returned quotas from retired athletes in the qualication, or from some continental quotas unused, or whatever else....