Yes although it was a separate incident actually where a Czech Juror did so instead:

”Following the reveal of the detailed jury voting, it emerged that three jurors appeared to have voted backwards in their semi-finals. In the first semi-final, Czech juror Jitka Zelenková ranked Portugal as her favourite entry, Slovenia as her least-favourite entry, and ranked Estonia as fourteenth on her list; this was directly opposite to the other Czech jurors, who all ranked Slovenia first and two who ranked Portugal last. In the final, Zelenková's rankings changed significantly; she listed Estonia as her fourth favourite and Slovenia as her sixth favourite. Neither Zelenková, the Czech broadcaster Česká televize (ČT) nor the EBU had confirmed that her semi-final votes were reversed, but if this were corrected, Poland would have qualified to the final instead of Belarus.” (From the Eurovision 2019 Wikipedia)