YE has confirmed both situations.
Many thanks.
Two further clarifications:
1. re: DabbingSanta - what was the exact situation that transpired? He made two separate posts with separate ballots? He posted the same ballot twice? He posted one, then more than twenty minutes later, deleted it and posted another?
2. re:nerd73, is there precedent on a ballot standing because of post-vote post deletions? I may be misinformed but couldn't one argue that this is in effect a voter consciously invalidating their own ballot, as if they were to edit it after the time limit?
Dabbing Santa made two posts in the booth and deleted one of them.
Nerd deleted his posts after the election was concluded, and the law itself speaks of "having made eight posts", which he certainly had at the the voting booth was locked.