Alias for value doesn't work.

[i1befree]

Describe the bug
No action is taken when selecting field's Alias ​​for value menu in chart view or dashboard edit screen.

Return value for request is :
{"code":"GB0001","details":"NullPointerException: "}

To Reproduce
Steps to reproduce the behavior:

1. Go to workbook
2. Click on edit dashboard
3. Click on Alias for value metnu on datasource field.
4. See error

Expected behavior
We should see a screen where you can edit the alias value for the field value.

Screenshots

Desktop (please complete the following information):

• Version 3.2.0

Additional context
Add any other context about the problem here.

[kyungtaak]

@eltriny plz check as below