valueConstraint and LimitedValues doesn't seem to work

I have a custom table where we stage HR-data before syncing to Person. 

There's also a custom angular module where you can create and edit new external identities. 

On column has a a defined list of values 0,1,2,3. 

I want to be able to limit what certain users see in the Webportal when they create a new external identities. 

But it doesn't seem to work, I can se that valueConstraint.LimitedValues are set correctly, but all values are still showing in the dropdown list. 

Am I missing something, or is this not supported for imx-cdr-editor?

According to the documentation: 

  private createCdrList(columnNames: string[], entity: IEntity): (ColumnDependentReference | undefined)[] {  
    let cdrList: (ColumnDependentReference | undefined)[] = [];
    cdrList = this.cdrFactoryService.buildCdrFromColumnList(entity, columnNames, false);

    cdrList.map((field) => {
      // Set minimum length for EmployeeID
      if (field?.column.ColumnName === 'CCC_EmployeeID') {
        field.minLength = 12;
      }
      // Limit CCC_EmployeeType to allowed values
      if (field?.column.ColumnName === 'CCC_EmployeeType') {
        const allowed = this.allowedEmployeeTypes;
        const limitedValues = field.column.GetMetadata().GetLimitedValues();
        if (limitedValues) {
          field.valueConstraint = {
            ...field.valueConstraint,
            LimitedValues: limitedValues.filter(v => allowed.includes(String(v.Value)))
          };

        }
      }
    })
    return cdrList;
  }