If someone revises their upvote, then the original upvote is removed and the new upvote value is applied.
For instance, if I upvote 100% then later change it to 0%, the author gets nothing and I get nothing. However, I do not get my upvote manna back, so zeroing out my upvote takes those author rewards away from the author and also takes those curation rewards away from myself.
I'm not sure I fully understand your question.
If someone revises their upvote, then the original upvote is removed and the new upvote value is applied.
For instance, if I upvote 100% then later change it to 0%, the author gets nothing and I get nothing. However, I do not get my upvote manna back, so zeroing out my upvote takes those author rewards away from the author and also takes those curation rewards away from myself.
I believe u understood quite well, even if I was sleep deprived rambling and couldn't fully form coherence.
Ty, answered well.