When a post comes up for reopen review, for instance, after a post-close edit, it is possible for reviewers to be asked to judge their own close votes. For example, in this review (which I guess not many can see)
on this tex.sx question:
two of the reviewers were among the close voters.
I'm not sure what I think about this. Is there a conflict of interest here, or is it good to have this kind of continued input in the review process?