Debian votes are ranked choice.
Specifically, they use the Schulze method[1] with ranked ballots, which is far better[2] than the IRV method popularized by FairVote[3] and currently making the rounds in the U.S.
[1] https://en.wikipedia.org/wiki/Schulze_method
Diluting the vote of your opponent/position is quite common.
https://www.newsweek.com/russian-politician-discovers-2-men-...
Re:Debian decides to allow secret votes
by bigbillheck on Tuesday March 29, 2022 @12:33PM
(#30844787)
I don't see anything in there about ranked choice voting.
The only way to properly poll that is either rank choice voting or a second vote after voting to change or not.