When we update the CssClass to an empty string, the class is not cleared properly in the MultiSelect component
Replication procedure:
1: Run the sample
2:Click the valid/invalid button
3: And clear button
4. You can see the issue on MultiSelect
Expected Output: Class should be updated properly on multiselect
Current Output:When we update the CssClass to an empty string, the class is not cleared properly in the MultiSelect component