Switch to $watchCollection to resolve the issue of chart not updating when length of series stays the same.
Switch to $watchCollection to resolve the issue of chart not updating when length of series stays the same.

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