Restore individual case-checking for user IDs in the 'challenge' message.
Restore individual case-checking for user IDs in the 'challenge' message.

Gold-Solox/Pokemon-Showdown,BlakJack/Kill-The-Noise,yashagl/pokemon-showdown,Guernouille/Pokemon-Showdown,Mystifi/Exiled,Firestatics/Omega-Alpha,TheManwithskills/DS,svivian/Pokemon-Showdown,InvalidDN/Pokemon-Showdown,JennyPRO/Jenny,Atwar/server-epilogueleague.rhcloud.com,gustavo515/final,Adithya4Uberz/KTN,arkanox/MistShowdown,Ridukuo/Test,Flareninja/Lumen-Pokemon-Showdown,sama2/Universe-Pokemon-Showdown,comedianchameleon/servertest1,FakeSloth/wulu,TheManwithskills/serenity,SerperiorBae/Pokemon-Showdown-1,QuiteQuiet/Pokemon-Showdown,kupochu/Pokemon-Showdown,SilverTactic/Pokemon-Showdown,SerperiorBae/Pokemon-Showdown,TheManwithskills/DS,TheFenderStory/Showdown-Boilerplate,PS-Spectral/Spectral,MayukhKundu/Flame-Savior,Nineage/Showdown-Boilerplate,lFernanl/Mudkip-Server,TheManwithskills/Dusk--Showdown,theodelhay/test,AWailOfATail/awoat,PS-Spectral/Spectral,Wando94/Pokemon-Showdown,Atwar/http-server-femalehq.rhcloud.com-80.psim.us-,ZeroParadox/BlastBurners,Oiawesome/DPPtServ2,Irraquated/EOS-Master,ehk12/clone,ZeroParadox/ugh,TheDiabolicGift/Lumen-Pokemon-Showdown,LegendBorned/PS-Boilerplate,Sora-Server/Sora,CorruptedHelix/Pokemon-Showdown,CreaturePhil/Pokemon-Showdown,Sora-League/Sora,ehk12/coregit,MayukhKundu/Technogear,Fusxfaranto/Pokemon-Showdown,TheManwithskills/Server,Kill-The-Noise/BlakJack-Boilerplate,lAlejandro22/lolipoop,FakeSloth/Infinite,HoeenCoder/SpacialGaze,BlazingAura/Showdown-Boilerplate,Legit99/Lightning-Storm-Server,ShowdownHelper/Saffron,Wando94/Spite,kubetz/Pokemon-Showdown,Luobata/Pokemon-Showdown,Breakfastqueen/advanced,InvalidDN/Pokemon-Showdown,Mystifi/Exiled,lFernanl/Zero-Pokemon-Showdown,SerperiorBae/Bae-Showdown-2,sama2/Dropp-Pokemon-Showdown,SerperiorBae/BaeShowdown,Sora-League/Sora,hayleysworld/harmonia,lFernanl/Mudkip-Server,superman8900/Pokemon-Showdown,Pablo000/aaa,bai2/Dropp,TheManwithskills/COC,Zipzapadam/Server,TheManwithskills/Dusk--Showdown,lFernanl/Pokemon-Showdown,danpantry/Pokemon-Showdown,abulechu/Lumen-Pokemon-Showdown,Neosweiss/Pokemon-Showdown,PrimalGallade45/Dropp-Pokemon-Showdown,SkyeTheFemaleSylveon/Mudkip-Server,kuroscafe/Paradox,TheManwithskills/Server-2,kotarou3/Krister-Pokemon-Showdown,JellalTheMage/Jellals-Server,TheManwithskills/Server---Thermal,brettjbush/Pokemon-Showdown,ScottehMax/Pokemon-Showdown,Legit99/Lightning-Storm-Server,CreaturePhil/Showdown-Boilerplate,superman8900/Pokemon-Showdown,urkerab/Pokemon-Showdown,Neosweiss/Pokemon-Showdown,ZeroParadox/BlastBurners,jumbowhales/Pokemon-Showdown,BadSteel/Omega-Pokemon-Showdown,Breakfastqueen/advanced,SilverTactic/Dragotica-Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,ankailou/Pokemon-Showdown,SerperiorBae/Pokemon-Showdown-1,Vacate/Pokemon-Showdown,Zarel/Pokemon-Showdown,ehk12/bigbangtempclone,lFernanl/Lumen-Pokemon-Showdown,Extradeath/advanced,Ransei1/Alt,Ecuacion/Lumen-Pokemon-Showdown,jumbowhales/Pokemon-Showdown,jd4564/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,yashagl/yash-showdown,sirDonovan/Pokemon-Showdown,megaslowbro1/Showdown-Server-again,xfix/Pokemon-Showdown,TheManwithskills/New-boiler-test,DalleTest/Pokemon-Showdown,KewlStatics/Showdown-Template,RustServer/Pokemon-Showdown,Celecitia/Plux-Pokemon-Showdown,lFernanl/Lumen-Pokemon-Showdown,forbiddennightmare/Pokemon-Showdown-1,hayleysworld/serenity,comedianchameleon/test,Ecuacion/Pokemon-Showdown,ehk12/coregit,panpawn/Gold-Server,Parukia/Pokemon-Showdown,Alpha-Devs/Alpha-Server,Raina4uberz/Light-server,Irraquated/Pokemon-Showdown,hayleysworld/Pokemon-Showdown,AvinashSwaminathan/lotus,MeliodasBH/boarhat,DesoGit/Tsunami_PS,PauLucario/LQP-Server-Showdown,Parukia/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,HoeenCoder/SpacialGaze,Evil-kun/Pokemon-Showdown,xCrystal/Pokemon-Showdown,Nineage/Origin,lFernanl/Pokemon-Showdown,Volcos/SpacialGaze,JellalTheMage/PS-,kuroscafe/Showdown-Boilerplate,MasterFloat/Pokemon-Showdown,yashagl/yash-showdown,BasedGod7/PH,ZestOfLife/FestiveLife,Irraquated/EOS-Master,JellalTheMage/PS-,UniversalMan12/Universe-Server,Flareninja/Pokemon-Showdown-1,hayleysworld/serenityc9,Flareninja/Pokemon-Showdown,MayukhKundu/Pokemon-Domain,Darkshadow6/PokeMoon-Creation,miahjennatills/Pokemon-Showdown,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,Irraquated/Pokemon-Showdown,Irraquated/Showdown-Boilerplate,MasterFloat/LQP-Server-Showdown,SerperiorBae/Pokemon-Showdown-1,catanatron/pokemon-rebalance,PrimalGallade45/Dropp-Pokemon-Showdown,hayleysworld/harmonia,EienSeiryuu/Pokemon-Showdown,Mystifi/Exiled,SilverTactic/Showdown-Boilerplate,Lord-Haji/SpacialGaze,PauLucario/LQP-Server-Showdown,Sora-Server/Sora,LustyAsh/EOS-Master,Lord-Haji/SpacialGaze,cadaeic/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,gustavo515/test,piiiikachuuu/Pokemon-Showdown,TheManwithskills/Server-2,Ridukuo/Test2,panpawn/Gold-Server,comedianchameleon/test,scotchkorean27/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,panpawn/Pokemon-Showdown,Ecuacion/Lumen-Pokemon-Showdown,panpawn/Pokemon-Showdown,hayleysworld/Showdown-Boilerplate,HoeenKid/Pokemon-Showdown-Johto,Wando94/Pokemon-Showdown,asdfghjklohhnhn/Pokemon-Showdown,Enigami/Pokemon-Showdown,theodelhay/test,Tesarand/Pokemon-Showdown,anubhabsen/Pokemon-Showdown,AWailOfATail/awoat,Werfin96/Ultimate,Ransei1/Alt,megaslowbro1/Showdown-Server-again,AbsolitoSweep/Absol-server,Firestatics/Firestatics46,AnaRitaTorres/Pokemon-Showdown,Lauc1an/Perulink-Showdown,johtooo/PS,Pokemon-Devs/Pokemon-Showdown,Git-Worm/City-PS,VoltStorm/Server-pokemon-showdown,Darkshadow6/PokeMoon-Creation,Flareninja/Sora,gustavo515/test,yashagl/pokemon,PrimalGallade45/Lumen-Pokemon-Showdown,AustinXII/Pokemon-Showdown,catanatron/pokemon-rebalance,Pikachuun/Pokemon-Showdown-SMCMDM,azum4roll/Pokemon-Showdown,KaitoV4X/Showdown,Sora-League/Sora,Disaster-Area/Pokemon-Showdown,panpawn/Gold-Server,SkyeTheFemaleSylveon/Pokemon-Showdown,Extradeath/psserver,xCrystal/Pokemon-Showdown,SSJGVegito007/Vegito-s-Server,svivian/Pokemon-Showdown,KewlStatics/Pokeindia-Codes,Atwar/ServerClassroom,gustavo515/gashoro,Kill-The-Noise/BlakJack-Boilerplate,CharizardtheFireMage/Showdown-Boilerplate,ankailou/Pokemon-Showdown,ehk12/bigbangtempclone,TheManwithskills/Server---Thermal,Firestatics/omega,Firestatics/omega,Extradeath/psserver,Hidden-Mia/Roleplay-PS,jd4564/Pokemon-Showdown,DesoGit/TsunamiPS,Evil-kun/Pokemon-Showdown,Celecitia/Plux-Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,Pikachuun/Touhoumon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,TheFenderStory/Showdown-Boilerplate,Elveman/RPCShowdownServer,SerperiorBae/Bae-Showdown,Flareninja/Pokemon-Showdown-1,HoeenCoder/SpacialGaze,SolarisFox/Pokemon-Showdown,arkanox/MistShowdown,AbsolitoSweep/Absol-server,asdfghjklohhnhn/Pokemon-Showdown,Adithya4Uberz/The-Tsunami-League,gustavo515/gashoro,abulechu/Dropp-Pokemon-Showdown,CreaturePhil/Pokemon-Showdown,TogeSR/Lumen-Pokemon-Showdown,Irraquated/Showdown-Boilerplate,javi501/Lumen-Pokemon-Showdown,Nineage/Origin,kupochu/Pokemon-Showdown,psnsVGC/Wish-Server,Ridukuo/Test,Enigami/Pokemon-Showdown,MayukhKundu/Mudkip-Server,LegendBorned/PS-Boilerplate,sama2/Universe-Pokemon-Showdown,sirDonovan/Pokemon-Showdown,CorruptedHelix/Pokemon-Showdown,BlazingAura/Showdown-Boilerplate,NoahVSGamingYT/Pokemon-Showdown,UniversalMan12/Universe-Server,CharizardtheFireMage/Showdown-Boilerplate,Flareninja/Showdown-Boilerplate,TheManwithskills/Creature-phil-boiler,zczd/enculer,MeliodasBH/Articuno-Land,SilverTactic/Pokemon-Showdown,AvinashSwaminathan/lotus-v3,Irraquated/Pokemon-Showdown,Alpha-Devs/Alpha-Server,jumbowhales/Pokemon-Showdown,BuzzyOG/Pokemon-Showdown,yashagl/pokecommunity,Zarel/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,CrestfallPS/Pokemon-Showdown,hayleysworld/asdfasdf,abulechu/Dropp-Pokemon-Showdown,MayukhKundu/Technogear-Final,MasterFloat/Pokemon-Showdown,k3naan/Pokemon-Showdown,Articuno-I/Pokemon-Showdown,gustavo515/batata,Arcticblast/Pokemon-Showdown,Elveman/RPCShowdownServer,johtooo/PS,TheManwithskills/Server,yashagl/pokemon-showdown,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,lAlejandro22/lolipoop,Firestatics/Omega-Alpha,TheDiabolicGift/Lumen-Pokemon-Showdown,NoahVSGamingYT/Pokemon-Showdown,DarkSuicune/Kakuja-2.0,KewlStatics/Shit,megaslowbro1/Pokemon-Showdown,Enigami/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,MayukhKundu/Flame-Savior,Breakfastqueen/advanced,MayukhKundu/Technogear-Final,psnsVGC/Wish-Server,xfix/Pokemon-Showdown,SerperiorBae/Pokemon-Showdown,hayleysworld/asdfasdf,Volcos/SpacialGaze,PS-Spectral/Spectral,RustServer/Pokemon-Showdown,Hidden-Mia/Roleplay-PS,Enigami/Pokemon-Showdown,DarkSuicune/Pokemon-Showdown,HoeenCoder/SpacialGaze,SolarisFox/Pokemon-Showdown,KewlStatics/Shit,sirDonovan/Pokemon-Showdown,MeliodasBH/boarhat,xfix/Pokemon-Showdown,KewlStatics/Pokeindia-Codes,TheFenderStory/Pokemon-Showdown,yashagl/pokemon,JennyPRO/Jenny,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,zczd/enculer,Kokonoe-san/Glacia-PS,LustyAsh/EOS-Master,Parukia/Pokemon-Showdown,AustinXII/Pokemon-Showdown,Tesarand/Pokemon-Showdown,Alpha-Devs/OmegaRuby-Server,zek7rom/SpacialGaze,kubetz/Pokemon-Showdown,DarkSuicune/Kakuja-2.0,iFaZe/SilverZ,ScottehMax/Pokemon-Showdown,Pokemon-Devs/Pokemon-Showdown,Flareninja/Sora,Hopenub/Pokemon-Showdown,Chespin14/Custom-Platform-Pokemon-Showdown,SubZeroo99/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,FakeSloth/Infinite,Sora-Server/Sora,Lauc1an/Perulink-Showdown,Gold-Solox/Pokemon-Showdown,EmmaKitty/Pokemon-Showdown,sama2/Viridian-Pokemon-Showdown,hayleysworld/serenityserver,ZestOfLife/PSserver,miahjennatills/Pokemon-Showdown,DesoGit/Tsunami_PS,Flareninja/Hispano-Pokemon-Showdown,KewlStatics/Alliance,ZestOfLife/PSserver,Kill-The-Noise/BlakJack-Boilerplate,scotchkorean27/Pokemon-Showdown,forbiddennightmare/Pokemon-Showdown-1,ShowdownHelper/Saffron,Checkinator/Pokemon-Showdown,Pablo000/aaa,SerperiorBae/BaeShowdown,zek7rom/SpacialGaze,megaslowbro1/Pokemon-Showdown,iFaZe/SliverX,Ecuacion/Pokemon-Showdown,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,kotarou3/Krister-Pokemon-Showdown,Checkinator/Pokemon-Showdown,MayukhKundu/Pokemon-Domain,SerperiorBae/Bae-Showdown-2,svivian/Pokemon-Showdown,SkyeTheFemaleSylveon/Mudkip-Server,Flareninja/Lumen-Pokemon-Showdown,comedianchameleon/servertest1,Johto-Serverr/Werfin-Boilerplate,SerperiorBae/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,xfix/Pokemon-Showdown,Git-Worm/City-PS,gustavo515/final,k3naan/Pokemon-Showdown,Oiawesome/DPPtServ2,SerperiorBae/PokemonShowdown2,Adithya4Uberz/The-Tsunami-League,abulechu/Lumen-Pokemon-Showdown,SilverTactic/Showdown-Boilerplate,anubhabsen/Pokemon-Showdown,lFernanl/Zero-Pokemon-Showdown,Zipzapadam/Server,SilverTactic/Dragotica-Pokemon-Showdown,hayleysworld/Pokemon-Showdown,danpantry/Pokemon-Showdown,DesoGit/Tsunami_PS,Yggdrasil-League/Yggdrasil,Pikachuun/Pokemon-Showdown,LightningStormServer/Lightning-Storm,ZestOfLife/FestiveLife,LightningStormServer/Lightning-Storm,TheDiabolicGift/Showdown-Boilerplate,SSJGVegito007/Vegito-s-Server,SerperiorBae/Bae-Showdown,Zarel/Pokemon-Showdown,Pikachuun/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,hayleysworld/serenity,Flareninja/Showdown-Boilerplate,Psyientist/Showdown-Boilerplate,Stroke123/POKEMON,Flareninja/Sora,svivian/Pokemon-Showdown,abrulochp/Lumen-Pokemon-Showdown,DalleTest/Pokemon-Showdown,TheManwithskills/COC,TheManwithskills/serenity,Kevinxzllz/PS-Openshift-Server,SerperiorBae/Bae-Showdown,KewlStatics/Alliance,abrulochp/Dropp-Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,azum4roll/Pokemon-Showdown,Legendaryhades/Oblivion,DesoGit/TsunamiPS,comedianchameleon/test,ShowdownHelper/Saffron,SerperiorBae/BaeShowdown,Kokonoe-san/Glacia-PS,svivian/Pokemon-Showdown,Pikachuun/Joimmon-Showdown,ZeroParadox/ugh,AvinashSwaminathan/lotus-v2,SubZeroo99/Pokemon-Showdown,Disaster-Area/Pokemon-Showdown,Tesarand/Pokemon-Showdown,Atwar/server-epilogueleague.rhcloud.com,xfix/Pokemon-Showdown,yashagl/pokecommunity,xCrystal/Pokemon-Showdown,Lord-Haji/SpacialGaze,sama2/Lumen-Pokemon-Showdown,Flareninja/Hispano-Pokemon-Showdown,sama2/Lumen-Pokemon-Showdown,bai2/Dropp,Raina4uberz/Light-server,DarkSuicune/Pokemon-Showdown,BadSteel/Pokemon-Showdown,Flareninja/Pokemon-Showdown,TheDiabolicGift/Showdown-Boilerplate,Yggdrasil-League/Yggdrasil,Pikachuun/Pokemon-Showdown-SMCMDM,kuroscafe/Paradox,Atwar/http-server-femalehq.rhcloud.com-80.psim.us-,Darkshadow6/PokeMoon-Creation,KewlStatics/Showdown-Template,DB898/theregalias,BuzzyOG/Pokemon-Showdown,Syurra/Pokemon-Showdown,Psyientist/Showdown-Boilerplate,Vacate/Pokemon-Showdown,sama2/Dropp-Pokemon-Showdown,gustavo515/batata,LightningStormServer/Lightning-Storm,piiiikachuuu/Pokemon-Showdown,Ridukuo/Test2,cadaeic/Pokemon-Showdown,TheManwithskills/Server-2,BuzzyOG/Pokemon-Showdown,hayleysworld/serenityc9,EmmaKitty/Pokemon-Showdown,JellalTheMage/Jellals-Server,TheManwithskills/New-boiler-test,Articuno-I/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,urkerab/Pokemon-Showdown,AnaRitaTorres/Pokemon-Showdown,brettjbush/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,KaitoV4X/Showdown,SerperiorBae/Bae-Showdown-2,DB898/theregalias,UniversalMan12/Universe-Server,Alpha-Devs/OmegaRuby-Server,Thiediev/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,Stroke123/POKEMON,hayleysworld/serenityserver,Extradeath/advanced,ehk12/clone,hayleysworld/Showdown-Boilerplate,Pikachuun/Joimmon-Showdown,Firestatics/Firestatics46,Atwar/ServerClassroom,sama2/Viridian-Pokemon-Showdown,Wando94/Spite,MayukhKundu/Mudkip-Server,TbirdClanWish/Pokemon-Showdown,MeliodasBH/Articuno-Land,AustinXII/Pokemon-Showdown,SerperiorBae/PokemonShowdown2,Syurra/Pokemon-Showdown,TheFenderStory/Pokemon-Showdown,MayukhKundu/Technogear,Darkshadow6/git-remote-add-scalingo-git-scalingo.com-pokemoonforums,MasterFloat/LQP-Server-Showdown,Guernouille/Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,AvinashSwaminathan/Pokelegends,kuroscafe/Showdown-Boilerplate,aakashrajput/Pokemon-Showdown,urkerab/Pokemon-Showdown,TogeSR/Lumen-Pokemon-Showdown,abrulochp/Lumen-Pokemon-Showdown,Kevinxzllz/PS-Openshift-Server,Kenny-/Pokemon-Showdown