Loading new data in Grid does not appear after scrolling

[yanmariomenev]

Description

If you use virtualization, scroll the Grid, update the dataset, and set skip to 0, the new data won’t render until you try to scroll the Grid again. This scenario worked in version 20.0.0, but it doesn’t work correctly in version 20.1.0.

Steps To Reproduce

https://stackblitz.com/edit/angular-qrl17rvg-mvucujba?file=src%2Fapp%2Fapp.component.ts

1. Click the 400 button.
2. Scroll to the bottom of the list (it doesn’t have to be the very bottom, but the pageChange event must fire and update skip).
3. Click the 6 button.
4. Notice that the old data is removed, but no new data is visible.
5. Click on the scrollbar.
6. The new data now appears.