Fix: use String ctor function instead of toString to handle nulls
Fix: use String ctor function instead of toString to handle nulls

EverlyWell/redash,guaguadev/redash,guaguadev/redash,easytaxibr/redash,denisov-vlad/redash,akariv/redash,44px/redash,M32Media/redash,rockwotj/redash,akariv/redash,hudl/redash,imsally/redash,vishesh92/redash,alexanderlz/redash,crowdworks/redash,ninneko/redash,crowdworks/redash,chriszs/redash,stefanseifert/redash,getredash/redash,easytaxibr/redash,jmvasquez/redashtest,amino-data/redash,useabode/redash,imsally/redash,guaguadev/redash,guaguadev/redash,easytaxibr/redash,hudl/redash,moritz9/redash,crowdworks/redash,amino-data/redash,akariv/redash,crowdworks/redash,vishesh92/redash,pubnative/redash,chriszs/redash,denisov-vlad/redash,chriszs/redash,44px/redash,moritz9/redash,stefanseifert/redash,hudl/redash,EverlyWell/redash,vishesh92/redash,useabode/redash,ninneko/redash,rockwotj/redash,alexanderlz/redash,jmvasquez/redashtest,amino-data/redash,denisov-vlad/redash,useabode/redash,M32Media/redash,getredash/redash,pubnative/redash,pubnative/redash,getredash/redash,vishesh92/redash,ninneko/redash,hudl/redash,EverlyWell/redash,guaguadev/redash,44px/redash,alexanderlz/redash,M32Media/redash,easytaxibr/redash,jmvasquez/redashtest,chriszs/redash,ninneko/redash,easytaxibr/redash,akariv/redash,moritz9/redash,EverlyWell/redash,akariv/redash,moritz9/redash,useabode/redash,getredash/redash,44px/redash,pubnative/redash,getredash/redash,stefanseifert/redash,denisov-vlad/redash,amino-data/redash,alexanderlz/redash,stefanseifert/redash,jmvasquez/redashtest,imsally/redash,pubnative/redash,rockwotj/redash,denisov-vlad/redash,jmvasquez/redashtest,imsally/redash,ninneko/redash,M32Media/redash,rockwotj/redash,stefanseifert/redash