Question about the Deja Vu Kendrick Lamar and Pusha T verses

So I've always loved the unreleased Kanye song Deja Vu, and the version I've always listened to had verses from Kanye, Kendrick, and Pusha T. Just today I had the complete bombshell dropped on me that the original leaked Deja Vu was ONLY Kanye and that the Kendrick and Pusha T verses were added in fan edits. My question is where the hell these verses came from then?