Hello Patrick,
Thank you for your feedback. I managed to reproduce the scenario
in this Dojo example. The current behavior looks like a bug. Therefore I have converted this thread to
a Bug report in our Feedback portal. I also provide you a link with the issue to our
public GitHub repository where you can also find further information on the matter. Until the bug is fixed, I would recommend you not to use 0 as grouping criteria in you project.
I also updated your Telerik Points as a thank you for your feedback.
Regards,
Veselin Tsvetanov
Progress Telerik
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