Fail validation for empty strings and NSNull on required rows.
Fail validation for empty strings and NSNull on required rows.

mhGaber/XLForm,jaylyerly/XLForm,dkeichinger/XLForm,takeshineshiro/XLForm,mhGaber/XLForm,Suninus/XLForm,colemancda/XLForm,MiMo42/XLForm,kundanjadhav/XLForm,ReDetection/XLForm,iCandyLabs/XLForm,tarbayev/XLForm,jdgong/XLForm,jordancamara/XLForm,dkeichinger/XLForm,wieseljonas/XLForm,colemancda/XLForm,AlexanderMazaletskiy/XLForm,KitmanLabs/XLForm,tomburns/XLForm,ifullgaz/XLForm,cbh2000/XLForm,appvation/XLForm,dfinzer/XLForm,kundanjadhav/XLForm,mkoppanen/XLForm,chrisballinger/XLForm,ShengQiangLiu/XLForm,200895045/XLForm,Tobiaswk/XLForm,santiagofm/XLForm,cnbin/XLForm,mofodox/XLForm,ziogaschr/XLForm,DanielAsher/XLForm,hejunbinlan/XLForm,sportlabsMike/XLForm,iOSCowboy/XLForm,DanielAsher/XLForm,xmartlabs/XLForm,mojidabckuu/XLForm,cdstamper/XLForm,fhchina/XLForm,hazytint/XLForm,xmartlabs/XLForm,santiagofm/XLForm,vmvinothkumargithub/XLForm,iOSCowboy/XLForm,appvation/XLForm,noodlewerk/XLForm,ngocphu2810/XLForm,Suninus/XLForm,fprosper/XLForm,aikdong/XLForm,mkoppanen/XLForm,santiagofm/XLForm,jpmhouston/XLForm,jrivelli/XLForm,ziogaschr/XLForm,droidlabs/XLForm,leberwurstsaft/XLForm,mkoppanen/XLForm,tommypeps/XLForm,ziogaschr/XLForm,jaylyerly/XLForm,vtongcoder/XLForm,mattgoldspink/XLForm,ShengQiangLiu/XLForm,markrickert/XLForm,macecchi/XLForm,ifullgaz/XLForm,qbraksa/XLForm,vmvinothkumargithub/XLForm