Larry sent the developers the following bug report:
I don't have the gaston database in front of me, but I assume there is some voting position right under the start button on the first page. I tried it with the Lake database that doesn't have anything under the start button and everything was okay.
I suppose the question comes down to timing (a double click becomes just a very fast voter at some point). I guess we should filter out clicks on the first page that are inside the "start" box for a 500-1000ms or so.
I'll put it on the devel list, but there are a few more fundamental problems in the queue right now. If people think this is going to be a really big problem follow up and I will adjust the priority.