I am using the polling asset to collect simple website feedback.
Even though I have not allowed multiple attempts, when testing the form - I am able to go back to the page and vote again. It follows the normal sequence of casting the vote and then showing the vote results page. Then if I go back to the original page, it shows the voting option INSTEAD of taking my straight to the results screen.
However, in the polling asset, I can see that it has not added the additional votes to the scoring.