
**Update**I've been playing with Visual Studio 2013 Preview and ASP.net MVC 5.9/10/2013
Long story short: They fixed it. In the RC version, you can safely update all the nuget packages. Good job, people who fixed it!
Super Summary: Don't Update Microsoft ASP.NET Identity Core or Microsoft ASP.NET Identity EntityFramework just yet in PREVIEW Visual Studio 2013.Things were going great until I did something unfortunate: Update ALL Nuget Packages.
Ouch!
