User blog comment:Kaloneous/Mass Effect 3 Ending DLC Denied and PAX/@comment-4237253-20120315073206/@comment-3444868-20120315090147

It doesn't "reset" it gives you a auto save point just before the Cronos Station mission and if you look at the saves (under load game) you can find the Restart Citadel: The Return mission. Also it does save because there is a thing called New Game Plus.