Feature Request

It should be possible for the value of the RadioGroup to be set to zero.

Reproduction of the problem

https://dojo.telerik.com/@NeliKondova/ObIXuric

Current behavior

Currently, when the value of the RadioGroup is set to zero, not item is actually selected as a value. The value of the RadioGroup could be set to zero only if it is a string.

Expected/desired behavior

To be possible the value of the RadioGroup to be set to 0.

Environment
Kendo UI version: 2021.1.1118