[ML] Anomaly Explorer - empty charts after double-click in overall swimlane

[elasticmachine]

Original comment by @pheyos:

Version:

• 6.2.0 BC3

Browser:

• Firefox 58.0

Steps to reproduce:

• Use snapshot ml-elastic-data/_snapshots6/cloudwatch2016_snapshot (index pattern "cloudwatch*")
• Create multi metric job: mean(CPUUtilization) / bucket span: 15m / split: instance
• View results in Anomaly Explorer
• In the overall swimlane: click a colored tile twice and do the second click faster than the charts are loaded (in particular do a double-click)
  • (ok:) The clicked tile is selected with the first click and deselected with the second click
  • (not ok:) There are empty charts in the Anomalies table (tile is deselected, so no charts should be displayed):
    

[elasticmachine]

Original comment by @walterra:

I'm changing the issue's version label since I could reproduce this in master too.