By the end of the movie Blade Runner (1982), the following conversation happens between Gaff and Deckard:
Gaff: You've done a man's job, sir! I guess you're through, huh?
Deckard: Finished.
However, I remember watching an alternate version of that scene, where things happened slightly differently.
In the original scene, there is a close-up on Deckard's face, as you hear Gaff yell his first line, before the camera switches over to the latter as he asks his question, and a police spinner is visibly parked in the background.
In the alternate scene I watched, the camera was focusing on Gaff from the beginning, and you could see a police spinner slowly landing, instead of already being parked there. And then Gaff said the following line after stretching his neck forward/upward:
Gaff: You've done a man's job, sir! But are you sure you are a man?
Which is quite similar to the line he was supposed to say according to an early draft of the movie, the only difference being that the draft also had him say an additional line afterwards: "It's hard to be sure who's who around here."
Since that alternate scene was never used in any released version of the movie, and I am convinced it was not a dream, where did that scene come from?