Fix signup bug
Fix signup bug

No Issue

- fixes bug that prevents successful signup from invite

pbevin/Ghost,delgermurun/Ghost,vloom/blog,Trendy/Ghost,smaty1/Ghost,JohnONolan/Ghost,flpms/ghost-ad,petersucks/blog,PeterCxy/Ghost,edurangel/Ghost,hnarayanan/narayanan.co,wangjun/Ghost,UsmanJ/Ghost,daihuaye/Ghost,weareleka/blog,ckousik/Ghost,panezhang/Ghost,virtuallyearthed/Ghost,memezilla/Ghost,jin/Ghost,sunh3/Ghost,omaracrystal/Ghost,mnitchie/Ghost,JohnONolan/Ghost,ivantedja/ghost,sfpgmr/Ghost,beautyOfProgram/Ghost,tidyui/Ghost,ashishapy/ghostpy,ngosinafrica/SiteForNGOs,imjerrybao/Ghost,letsjustfixit/Ghost,riyadhalnur/Ghost,sfpgmr/Ghost,morficus/Ghost,AnthonyCorrado/Ghost,letsjustfixit/Ghost,GroupxDev/javaPress,barbastan/Ghost,Elektro1776/javaPress,handcode7/Ghost,JonSmith/Ghost,bastianbin/Ghost,Trendy/Ghost,dymx101/Ghost,adam-paterson/blog,lethalbrains/Ghost,TryGhost/Ghost,yanntech/Ghost,Feitianyuan/Ghost,etanxing/Ghost,syaiful6/Ghost,tanbo800/Ghost,lf2941270/Ghost,beautyOfProgram/Ghost,singular78/Ghost,duyetdev/islab,rafaelstz/Ghost,velimir0xff/Ghost,ErisDS/Ghost,xiongjungit/Ghost,v3rt1go/Ghost,klinker-apps/ghost,greyhwndz/Ghost,ManRueda/Ghost,psychobunny/Ghost,olsio/Ghost,ThorstenHans/Ghost,olsio/Ghost,TryGhost/Ghost,arvidsvensson/Ghost,sceltoas/Ghost,cncodog/Ghost-zh-codog,obsoleted/Ghost,Gargol/Ghost,SachaG/bjjbot-blog,mayconxhh/Ghost,allanjsx/Ghost,exsodus3249/Ghost,trunk-studio/Ghost,telco2011/Ghost,IbrahimAmin/Ghost,kevinansfield/Ghost,Kaenn/Ghost,omaracrystal/Ghost,riyadhalnur/Ghost,andrewconnell/Ghost,cwonrails/Ghost,velimir0xff/Ghost,netputer/Ghost,Japh/shortcoffee,STANAPO/Ghost,syaiful6/Ghost,zackslash/Ghost,RufusMbugua/TheoryOfACoder,obsoleted/Ghost,dbalders/Ghost,devleague/uber-hackathon,Brunation11/Ghost,mohanambati/Ghost,alecho/Ghost,cicorias/Ghost,ballPointPenguin/Ghost,yanntech/Ghost,davidmenger/nodejsfan,johnnymitch/Ghost,flomotlik/Ghost,axross/ghost,pedroha/Ghost,flpms/ghost-ad,stridespace/Ghost,ckousik/Ghost,Smile42RU/Ghost,prosenjit-itobuz/Ghost,mohanambati/Ghost,Gargol/Ghost,tanbo800/Ghost,ineitzke/Ghost,TribeMedia/Ghost,theonlypat/Ghost,ManRueda/Ghost,VillainyStudios/Ghost,llv22/Ghost,thehogfather/Ghost,NikolaiIvanov/Ghost,NovaDevelopGroup/Academy,notno/Ghost,klinker-apps/ghost,bisoe/Ghost,daimaqiao/Ghost-Bridge,sebgie/Ghost,sunh3/Ghost,NovaDevelopGroup/Academy,novaugust/Ghost,k2byew/Ghost,jaguerra/Ghost,janvt/Ghost,developer-prosenjit/Ghost,BayPhillips/Ghost,daimaqiao/Ghost-Bridge,leninhasda/Ghost,allanjsx/Ghost,SkynetInc/steam,bosung90/Ghost,codeincarnate/Ghost,tidyui/Ghost,ManRueda/manrueda-blog,imjerrybao/Ghost,kwangkim/Ghost,Klaudit/Ghost,disordinary/Ghost,francisco-filho/Ghost,sceltoas/Ghost,andrewconnell/Ghost,telco2011/Ghost,jiangjian-zh/Ghost,vainglori0us/urban-fortnight,bitjson/Ghost,DesenTao/Ghost,kevinansfield/Ghost,cqricky/Ghost,dbalders/Ghost,GarrethDottin/Habits-Design,cncodog/Ghost-zh-codog,netputer/Ghost,lukaszklis/Ghost,alecho/Ghost,Smile42RU/Ghost,javimolla/Ghost,woodyrew/Ghost,flomotlik/Ghost,ManRueda/manrueda-blog,tyrikio/Ghost,UnbounDev/Ghost,francisco-filho/Ghost,javimolla/Ghost,patterncoder/patterncoder,KnowLoading/Ghost,jomahoney/Ghost,SkynetInc/steam,mlabieniec/ghost-env,TryGhost/Ghost,Xibao-Lv/Ghost,denzelwamburu/denzel.xyz,dbalders/Ghost,Japh/Ghost,mohanambati/Ghost,etanxing/Ghost,tandrewnichols/ghost,BlueHatbRit/Ghost,leonli/ghost,e10/Ghost,load11/ghost,VillainyStudios/Ghost,icowan/Ghost,etdev/blog,rollokb/Ghost,anijap/PhotoGhost,TribeMedia/Ghost,javorszky/Ghost,telco2011/Ghost,bosung90/Ghost,praveenscience/Ghost,disordinary/Ghost,skmezanul/Ghost,janvt/Ghost,akveo/akveo-blog,mlabieniec/ghost-env,developer-prosenjit/Ghost,shrimpy/Ghost,carlyledavis/Ghost,sangcu/Ghost,singular78/Ghost,singular78/Ghost,kevinansfield/Ghost,djensen47/Ghost,k2byew/Ghost,JonSmith/Ghost,kolorahl/Ghost,lanffy/Ghost,AnthonyCorrado/Ghost,bbmepic/Ghost,xiongjungit/Ghost,epicmiller/pages,sangcu/Ghost,dgem/Ghost,mayconxhh/Ghost,rouanw/Ghost,handcode7/Ghost,JohnONolan/Ghost,ManRueda/Ghost,rizkyario/Ghost,mnitchie/Ghost,barbastan/Ghost,lukw00/Ghost,arvidsvensson/Ghost,delgermurun/Ghost,ClarkGH/Ghost,rizkyario/Ghost,acburdine/Ghost,Azzurrio/Ghost,pollbox/ghostblog,skmezanul/Ghost,smaty1/Ghost,pollbox/ghostblog,nneko/Ghost,Japh/Ghost,icowan/Ghost,denzelwamburu/denzel.xyz,lf2941270/Ghost,lukw00/Ghost,cicorias/Ghost,Feitianyuan/Ghost,benstoltz/Ghost,yangli1990/Ghost,ErisDS/Ghost,nneko/Ghost,jgillich/Ghost,ljhsai/Ghost,Brunation11/Ghost,jamesslock/Ghost,stridespace/Ghost,situkangsayur/Ghost,ghostchina/Ghost-zh,bbmepic/Ghost,augbog/Ghost,atandon/Ghost,ngosinafrica/SiteForNGOs,jorgegilmoreira/ghost,lukaszklis/Ghost,zackslash/Ghost,Yarov/yarov,petersucks/blog,ManRueda/manrueda-blog,JulienBrks/Ghost,edurangel/Ghost,wangjun/Ghost,jiachenning/Ghost,ineitzke/Ghost,schematical/Ghost,ananthhh/Ghost,NamedGod/Ghost,anijap/PhotoGhost,LeandroNascimento/Ghost,stridespace/Ghost,Sebastian1011/Ghost,hyokosdeveloper/Ghost,patterncoder/patterncoder,acburdine/Ghost,morficus/Ghost,atandon/Ghost,wemakeweb/Ghost,Kaenn/Ghost,acburdine/Ghost,jaguerra/Ghost,dqj/Ghost,BlueHatbRit/Ghost,Kikobeats/Ghost,adam-paterson/b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