I have read those early drafts some time ago and for me the final one makes the most sense. Why would the the imperials continue making something like that with Leia after they understood that she will never tell the truth and there is no way to make her in such a short time that this information would still be current?

Why would not she go with somebody actually claiming to be trying to rescue her from there? Vaider was going to kill her anyway and she understood that.

Also note that in latest drafts including the final one Leia was never physically harmed in any way by anyone.