But the edit was actually a good one (like most edit proposals to my post I get to see) – a correction of syntax errors, so I would have definitively approved it.
(The suggested edit didn't change the main point of the answer, which was about the API to use, but it made the code example of my answer actually usable. I didn't compile it when writing my answer, it was late at the evening.)
So I did edit my post to include the proposed change, so the proposal is not fully lost. But the proposer only got the negative feedback from the rejection, and none of the reputation bonus an accepted edit gives.
My suggestion: Could there be added a way a post author can accept edits which were already rejected by other users?
Also, is there some way I can contact the rejectors and teach them not to reject good edits?