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Frozen rows + filtering + no results: some rows still visible

Hello,

We have noticed, that in the grid with following features used together: 
- virtual scroll, 
- frozen rows,
- filtering,
- remote/async data source

when user provides filtering params causing "no records" state of the grid, previously rendered frozen rows are still visible.

This can be simply reproduced on this demo: 

https://stackblitz.com/edit/qqxb5x-smqjc3?file=index.ts

It's enough to open above link and wait 2 sec for simulated user interaction: both "no records to show" and 2 frozen rows (not matching the filter!) are visible:

Empty