Bug report
When custom Virtual DropDownList filter is set the value is not cleared from the DropDownList on Clear button click
Reproduction
https://dojo.telerik.com/ULIgEpis
1. Filter Ship Name column
2. Open the filter menu and hit Clear
3 Open Filter menu again
Expected/desired behavior
Value shall be cleared from the DropDownList
Environment
Kendo UI version: 2021.1.301
Browser: all