I see some good musings on how big of a proportion of shares shorted would be recalled in anticipation of the vote. I don't know the answer (although I'd think most, since it's a very important vote).
But more importantly: if the vote is "yes, de-list TSLA from Nasdaq" then surely every single share sold short at that day would be recalled, by necessity? Or is there something I'm overlooking here?
If vote is yes, all shares must be recalled before the effective conversion date (not on the vote date, if that was your question).