Add ability to undo votes and/or clear all votes?

[anishathalye]

From his experience at HackPrinceton, @zacharyliu said that some issues that they had were:

• weird issue where one judge had 69 recorded votes within a few minutes, while the others had only ~20 votes by the end
• some judges started hitting random buttons even when we told them not to
• unable to delete bad votes from when judges hit random buttons before starting
• no way to undo accidental votes

Maybe we can improve this by adding:

• an ability to undo the last vote (to the judge UI)
• an ability for the organizers to clear votes for a specific judge / clear all votes

We need to have some discussion about exactly how this should be implemented.

[ghost]

If votes that need to be undone are actually accidental (not like judges regretting their decision) we could always implement something similar to Gmail's Undo Send, i.e. holding the submission for a short amount of time before actually making the request, instead of having to work with the backend.

[anishathalye]

True. Another way we could do it is by replaying all the decisions with the cancelled ones removed (this would be an O(n) operation, and for hackathon scale, probably fine).

[anishathalye]

Apparently people mis-click pretty frequently, so it would be nice to add the ability to undo votes.