[models:comment] - Update reference data type to Schema.Types.Mixed
[models:comment] - Update reference data type to Schema.Types.Mixed

CivicTechFR/DemocracyOSFR,josuedor/app,EuParticipo/Caxias,piratenfraktion-nrw/app,beomjae/app,kant/app,CivicTechFR/DemocracyOSFR,mbhicks90/myvotes.ca,120photo/app,mairwilliams/app,10Pines/app,Nicolas-Lebreton/app,PartidoDeLaRed/app,beomjae/app,radvansky-tomas/app,vntrp/app,atlatszo/evoks,huulbaek/app,MareAtlantica/democracyos,fonorobert/evoks,atlatszo/evoks,solde9/app,mairwilliams/app,josuedor/app,fonorobert/evoks,alexproca/democracy-os,ben-pr-p/app,ben-pr-p/app,mbhicks90/myvotes.ca,valentinchaput/app,AbraaoAlves/app,okfn-brasil/euvoto,piratenfraktion-nrw/app,solde9/app,PartidoDeLaRed/app,120photo/app,ManuH/app,dkrathi457/app,maiklaguna/app,dkrathi457/app,alexproca/democracy-os,okfn-brasil/euvoto,DemocraciaEnRed/bahiablanca,DemocraciaEnRed/comunas,d-cent/democracyos,DemocracyOS/app,MareAtlantica/democracyos,indiofran/app,DemocraciaEnRed/comunas,moustachu/democracy-os-app,DemocraciaEnRed/bahiablanca,ManuH/app,radvansky-tomas/app,DemocracyOS/app,huulbaek/app,AbraaoAlves/app,EuParticipo/Caxias,Nicolas-Lebreton/app,indiofran/app,valentinchaput/app,kant/app,vntrp/app,mgarciaisaia/democracy-os-ues,moustachu/democracy-os-app