Shift up/down navigation from selected group row throws error

[skrustev]

Description

Selecting or focusing group row and then pressing Shift + Up/Down results in error thrown. The behavior of the grid is not broken though.

• igniteui-angular version: 21.0.x
• browser: any

Steps to reproduce

1. Open https://staging.infragistics.com/products/ignite-ui-angular/angular/components/grid/groupby#angular-group-by-with-paging-example
2. Click on a group row or its checkbox
3. Press Shift + Up/Down

Result

The following error is thrown:

ERROR TypeError: Cannot destructure property 'row' of 't.node' as it is null.
    at r.generateRange (chunk-XLM554BY.js:1:162558)
    at r.selectRange (chunk-XLM554BY.js:1:164862)
    at r.dragSelect (chunk-XLM554BY.js:1:165080)
    at r.keyboardStateOnFocus (chunk-XLM554BY.js:1:163119)
    at r.activate (chunk-XLM554BY.js:27:71393)
    at chunk-XLM554BY.js:27:39761
    at r.executeCallback (chunk-XLM554BY.js:29:27081)
    at r.navigateTo (chunk-XLM554BY.js:29:964)
    at r.navigateInBody (chunk-XLM554BY.js:27:51093)
    at r.dispatchEvent (chunk-XLM554BY.js:27:39711)

Expected result

There should be no errors