Bug report

TreeList with multi-column headers and row filtering throws an error when user tries to reorder a column.

Reproduction of the problem
Open the Dojo - https://dojo.telerik.com/aFIkOPUp/3
Try to move column "position" left or right

Current behavior
Error is thrown 

Uncaught TypeError: Cannot read properties of undefined (reading 'locked')

Expected/desired behavior

Rerdering shall be allowed

Environment

jQuery version: 3.4.1

Kendo UI version: [all]
Browser: [all ]