Support tempbanning names with no known user (#8115)
Support tempbanning names with no known user (#8115)


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