[bubble-chart] Fixing issue w/ metric names (#5237)
[bubble-chart] Fixing issue w/ metric names (#5237)


mistercrunch/panoramix,dmigo/incubator-superset,apache/incubator-superset,dmigo/incubator-superset,apache/incubator-superset,mistercrunch/panoramix,dmigo/incubator-superset,zhouyao1994/incubator-superset,airbnb/superset,timifasubaa/incubator-superset,airbnb/superset,airbnb/caravel,zhouyao1994/incubator-superset,airbnb/caravel,timifasubaa/incubator-superset,mistercrunch/panoramix,airbnb/caravel,timifasubaa/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,mistercrunch/panoramix,airbnb/caravel,apache/incubator-superset,zhouyao1994/incubator-superset,airbnb/superset,apache/incubator-superset,airbnb/superset,dmigo/incubator-superset,timifasubaa/incubator-superset,zhouyao1994/incubator-superset