Description of problem:
Run 3 queries
 sort_desc(sum(sum_over_time(ALERTS{alertstate="firing"}[24h])) by (alertname))
 alertmanager_alerts
 aggregator_openapi_v2_regeneration_duration
chart displays well with zoom value 30m without 'Displaying with reduced resolution due to large dataset'
Zoom in as 15m or another value by mouse drag&drop
change zoom value as 30m or click button zoom value
Chart displays with 'Displaying with reduced resolution due to large dataset'
stacked checkbox is enabled

Version-Release number of selected component (if applicable):
4.7.0-0.ci.test-2020-12-24-014709-ci-ln-zzc9nkt

How reproducible:
always

Steps to Reproduce:
1.see description
2.
3.

Actual results:
Chart displays with 'Displaying with reduced resolution due to large dataset'

Expected results:
chart should display without 'Displaying with reduced resolution due to large dataset' when zoom in then reset zoom

Additional info:
Test with above version + PR https://github.com/openshift/console/pull/7408