[bugfix] wrong 'Cant have overlap between Series and Breakdowns' (#3254)
[bugfix] wrong 'Cant have overlap between Series and Breakdowns' (#3254)


SingTel-DataCo/incubator-superset,nekia/incubator-superset-dev,apache/incubator-superset,mistercrunch/panoramix,mistercrunch/panoramix,nekia/incubator-superset-dev,zhouyao1994/incubator-superset,airbnb/superset,dmigo/incubator-superset,nekia/incubator-superset-dev,dmigo/incubator-superset,nekia/incubator-superset-dev,zhouyao1994/incubator-superset,massgov/incubator-superset,timifasubaa/incubator-superset,zhouyao1994/incubator-superset,SingTel-DataCo/incubator-superset,apache/incubator-superset,massgov/incubator-superset,timifasubaa/incubator-superset,alanmcruickshank/superset-dev,airbnb/caravel,apache/incubator-superset,airbnb/caravel,SingTel-DataCo/incubator-superset,airbnb/superset,massgov/incubator-superset,timifasubaa/incubator-superset,apache/incubator-superset,airbnb/superset,zhouyao1994/incubator-superset,dmigo/incubator-superset,massgov/incubator-superset,FrederichCheng/incubator-superset,alanmcruickshank/superset-dev,apache/incubator-superset,alanmcruickshank/superset-dev,airbnb/caravel,airbnb/caravel,FrederichCheng/incubator-superset,alanmcruickshank/superset-dev,mistercrunch/panoramix,mistercrunch/panoramix,timifasubaa/incubator-superset,FrederichCheng/incubator-superset,FrederichCheng/incubator-superset,airbnb/superset,zhouyao1994/incubator-superset,SingTel-DataCo/incubator-superset,dmigo/incubator-superset