Fix test_signup.LoginTest.test_register.
Fix test_signup.LoginTest.test_register.

The test currently expects 67 database queries during registration, but we
added two more (likely calls to resolve_subdomain_to_realm) in ea39fb2.

dattatreya303/zulip,rishig/zulip,dawran6/zulip,brainwane/zulip,sharmaeklavya2/zulip,Galexrt/zulip,j831/zulip,JPJPJPOPOP/zulip,hackerkid/zulip,jackrzhang/zulip,brainwane/zulip,showell/zulip,susansls/zulip,eeshangarg/zulip,KingxBanana/zulip,kou/zulip,punchagan/zulip,vaidap/zulip,vikas-parashar/zulip,andersk/zulip,dawran6/zulip,hackerkid/zulip,SmartPeople/zulip,dawran6/zulip,sonali0901/zulip,mohsenSy/zulip,zulip/zulip,Jianchun1/zulip,blaze225/zulip,samatdav/zulip,sup95/zulip,Diptanshu8/zulip,mohsenSy/zulip,timabbott/zulip,sonali0901/zulip,rishig/zulip,vaidap/zulip,dhcrzf/zulip,Jianchun1/zulip,Juanvulcano/zulip,punchagan/zulip,arpith/zulip,andersk/zulip,JPJPJPOPOP/zulip,dhcrzf/zulip,vaidap/zulip,vabs22/zulip,brockwhittaker/zulip,zulip/zulip,jainayush975/zulip,susansls/zulip,amanharitsh123/zulip,peguin40/zulip,JPJPJPOPOP/zulip,vaidap/zulip,j831/zulip,jphilipsen05/zulip,souravbadami/zulip,christi3k/zulip,calvinleenyc/zulip,punchagan/zulip,verma-varsha/zulip,shubhamdhama/zulip,aakash-cr7/zulip,Jianchun1/zulip,Galexrt/zulip,aakash-cr7/zulip,christi3k/zulip,rht/zulip,showell/zulip,grave-w-grave/zulip,isht3/zulip,brainwane/zulip,brainwane/zulip,isht3/zulip,jackrzhang/zulip,AZtheAsian/zulip,susansls/zulip,arpith/zulip,vaidap/zulip,paxapy/zulip,SmartPeople/zulip,zulip/zulip,christi3k/zulip,mahim97/zulip,krtkmj/zulip,isht3/zulip,PhilSk/zulip,sharmaeklavya2/zulip,reyha/zulip,rishig/zulip,jphilipsen05/zulip,verma-varsha/zulip,paxapy/zulip,rht/zulip,umkay/zulip,Jianchun1/zulip,cosmicAsymmetry/zulip,sharmaeklavya2/zulip,j831/zulip,Diptanshu8/zulip,PhilSk/zulip,andersk/zulip,Juanvulcano/zulip,peguin40/zulip,dattatreya303/zulip,dawran6/zulip,vikas-parashar/zulip,eeshangarg/zulip,shubhamdhama/zulip,ryanbackman/zulip,kou/zulip,brainwane/zulip,paxapy/zulip,aakash-cr7/zulip,amanharitsh123/zulip,hackerkid/zulip,andersk/zulip,peguin40/zulip,vikas-parashar/zulip,shubhamdhama/zulip,Diptanshu8/zulip,isht3/zulip,arpith/zulip,zacps/zulip,KingxBanana/zulip,umkay/zulip,brockwhittaker/zulip,christi3k/zulip,tommyip/zulip,amanharitsh123/zulip,calvinleenyc/zulip,Galexrt/zulip,Diptanshu8/zulip,zacps/zulip,sharmaeklavya2/zulip,peguin40/zulip,andersk/zulip,grave-w-grave/zulip,brockwhittaker/zulip,zulip/zulip,niftynei/zulip,paxapy/zulip,jackrzhang/zulip,mahim97/zulip,vabs22/zulip,souravbadami/zulip,blaze225/zulip,punchagan/zulip,calvinleenyc/zulip,ryanbackman/zulip,amanharitsh123/zulip,jrowan/zulip,rht/zulip,synicalsyntax/zulip,jrowan/zulip,dhcrzf/zulip,souravbadami/zulip,aakash-cr7/zulip,mohsenSy/zulip,rishig/zulip,dawran6/zulip,dhcrzf/zulip,SmartPeople/zulip,vabs22/zulip,jackrzhang/zulip,rishig/zulip,eeshangarg/zulip,paxapy/zulip,dhcrzf/zulip,dhcrzf/zulip,Juanvulcano/zulip,Diptanshu8/zulip,jackrzhang/zulip,reyha/zulip,tommyip/zulip,rishig/zulip,Jianchun1/zulip,aakash-cr7/zulip,PhilSk/zulip,TigorC/zulip,dattatreya303/zulip,andersk/zulip,kou/zulip,vabs22/zulip,grave-w-grave/zulip,eeshangarg/zulip,krtkmj/zulip,amyliu345/zulip,PhilSk/zulip,rht/zulip,synicalsyntax/zulip,rht/zulip,sup95/zulip,peguin40/zulip,ryanbackman/zulip,susansls/zulip,umkay/zulip,j831/zulip,timabbott/zulip,jphilipsen05/zulip,krtkmj/zulip,ryanbackman/zulip,kou/zulip,j831/zulip,arpith/zulip,AZtheAsian/zulip,jainayush975/zulip,calvinleenyc/zulip,synicalsyntax/zulip,PhilSk/zulip,j831/zulip,grave-w-grave/zulip,shubhamdhama/zulip,synicalsyntax/zulip,brainwane/zulip,dattatreya303/zulip,punchagan/zulip,jackrzhang/zulip,shubhamdhama/zulip,Galexrt/zulip,mahim97/zulip,timabbott/zulip,tommyip/zulip,susansls/zulip,aakash-cr7/zulip,vaidap/zulip,kou/zulip,hackerkid/zulip,tommyip/zulip,mahim97/zulip,JPJPJPOPOP/zulip,dattatreya303/zulip,TigorC/zulip,tommyip/zulip,jainayush975/zulip,isht3/zulip,KingxBanana/zulip,blaze225/zulip,niftynei/zulip,vikas-parashar/zulip,SmartPeople/zulip,umkay/zulip,showell/zulip,hackerkid/zulip,cosmicAsymmetry/zulip,Juanvulcano/zulip,dawran6/zulip,jainayush975/zulip,AZtheAsian/zulip,sup95/zulip,amyliu345/zulip,sup95/zulip,amanharitsh123/zulip,joyhchen/zulip,joyhchen/zulip,verma-varsha/zulip,mahim97/zulip,cosmicAsymmetry/zulip,blaze225/zulip,synicalsyntax/zulip,brainwane/zulip,jphilipsen05/zulip,TigorC/zulip,timabbott/zulip,arpith/zulip,krtkmj/zulip,cosmicAsymmetry/zulip,hackerkid/zulip,sonali0901/zulip,sharmaeklavya2/zulip,Juanvulcano/zulip,sonali0901/zulip,jainayush975/zulip,punchagan/zulip,kou/zulip,KingxBanana/zulip,timabbott/zulip,samatdav/zulip,umkay/zulip,niftynei/zulip,sonali0901/zulip,synicalsyntax/zulip,verma-varsha/zulip,reyha/zulip,reyha/zulip,eeshangarg/zulip,jackrzhang/zulip,rht/zulip,joyhchen/zulip,samatdav/zulip,reyha/zulip,timabbott/zulip,verma-varsha/zulip,cosmicAsymmetry/zulip,jphilipsen05/zulip,niftynei/zulip,ryanbackman/zulip,TigorC/zulip,zacps/zulip,brockwhittaker/zulip,AZtheAsian/zulip,susansls/zulip,umkay/zulip,amyliu345/zulip,TigorC/zulip,AZtheAsian/zulip,eeshangarg/zulip,SmartPeople/zulip,souravbadami/zulip,zulip/zulip,KingxBanana/zulip,amyliu345/zulip,zulip/zulip,paxapy/zulip,vikas-parashar/zulip,brockwhittaker/zulip,shubhamdhama/zulip,zulip/zu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