Fix people voting >1 time for one poll option
Fix people voting >1 time for one poll option

Fixes #7906

Fixes https://www.smogon.com/forums/threads/bug-reports-v4-read-original-post-before-posting.3663703/page-40#post-8685683

svivian/Pokemon-Showdown,svivian/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,Zarel/Pokemon-Showdown,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,Zarel/Pokemon-Showdown,svivian/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,xfix/Pokemon-Showdown,xfix/Pokemon-Showdown