legend filters in pie chart with multiple splits don't work correctly

[ppisljar]

Kibana version: 6.6

• create new pie visualziation,
• split slices on first field, then split slices on second field
• in legend you will see values for each slice ...
• click on a legend entry for a slice from a second field (second level)
• click zoomin/zoomout icon to produce a filter

it will create a filter for this slice + its parent slice

expected result: create filter just for the legend item clicked, not for its parents.

[elasticmachine]

Pinging @elastic/kibana-app

[timroes]

Closed via #29592 (auto closing doesn't seem to work if you're not merging the PR into master)