Grid - Editing the primary key in a pinned row unpins the row

[IGvaleries]

Description

Editing the primary key in a pinned row unpins the row

Steps to reproduce

in the following sample edit the ID column in one of the pinned rows
https://stackblitz.com/edit/angular-ujej8f?file=src/app/grid/grid-row-pinning/grid-row-pinning.component.html

Result

After the edit is complete the row is no longer pinned

Expected result

The row remains pinned after editing the primary key