[signin] Fixed array length check throwing error with new version of dom. Related to #475.
[signin] Fixed array length check throwing error with new version of dom. Related to #475.

josuedor/app,piratenfraktion-nrw/app,PartidoDeLaRed/app,solde9/app,radvansky-tomas/app,josuedor/app,okfn-brasil/euvoto,120photo/app,ManuH/app,DemocraciaEnRed/bahiablanca,alexproca/democracy-os,dkrathi457/app,indiofran/app,ben-pr-p/app,radvansky-tomas/app,EuParticipo/Caxias,mbhicks90/myvotes.ca,alexproca/democracy-os,beomjae/app,EuParticipo/Caxias,ben-pr-p/app,moustachu/democracy-os-app,atlatszo/evoks,DemocraciaEnRed/bahiablanca,DemocraciaEnRed/comunas,vntrp/app,DemocracyOS/app,piratenfraktion-nrw/app,MareAtlantica/democracyos,solde9/app,valentinchaput/app,okfn-brasil/euvoto,AbraaoAlves/app,mbhicks90/myvotes.ca,fonorobert/evoks,vntrp/app,beomjae/app,kant/app,Nicolas-Lebreton/app,ManuH/app,120photo/app,CivicTechFR/DemocracyOSFR,DemocracyOS/app,huulbaek/app,dkrathi457/app,fonorobert/evoks,kant/app,atlatszo/evoks,huulbaek/app,moustachu/democracy-os-app,valentinchaput/app,PartidoDeLaRed/app,CivicTechFR/DemocracyOSFR,AbraaoAlves/app,DemocraciaEnRed/comunas,maiklaguna/app,Nicolas-Lebreton/app,MareAtlantica/democracyos,indiofran/app