Cornell University did a similar thing one year, needless to say, they did not resolve it the same way.

While Cornell was the first big example in 2003, it's been done many times since:

http://time.com/3637980/college-admissions-mistakes-johnshop...

It actually happens dozens of times per year on a one-off basis, usually with college coaches telling recruits they've been accepted when the admissions office has only provisionally accepted them.

SUNY Buffalo seems to have held the previous record of 5109. https://www.cnn.com/2016/04/18/us/us-university-buffalo-acce...

hahahaha that really sucks. Well, I think its gonna be an interesting outcome. Im excited to particpate and see what happens.