Here is the update I can share about the current issue. The fix of the discussed bug is not included in the last (2020 R2 SP1)Kendo UI for jQuery version.
Listing this bug fix among the Grid's fixes included in the last release is a mistake that will be corrected. I cannot say when this bug fix will be released. This will happen with our next official release. I cannot say if it will be a second service pack(for R2 2020) or out next release will be the R3 2020 release.
I've updated your Telerik points as a sign of gratitude for reporting the incorrect listing of the bug fix.
Let me know if you have any additional questions related to the current thread.
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