BUG: ListBox Does Not Refresh Properly with SET FILTER Command

MORE INFORMATION

Steps to Reproduce Problem

1. Create a new form.
2. Add the Customer table to the data environment.
3. Create a list box on the form.
   1. Set the RowSource property to "customer.country"
   2. Set the RowSourceType to "6 - Fields"
4. Create a Command1 button, and enter the following code in its Click event procedure:

      SET FILTER TO maxordamt < 25000.0000  && sets the filter
      x=FILTER()                && populating the variable with the filter
      thisform.refresh          && refreshing the form
   							

5. Create a Command2 button, and enter the following code in its Click event procedure:

      SET FILTER TO maxordamt = 5000.0000 && sets the filter
      x=FILTER()               && populating the variable with the filter
      thisform.refresh         && refreshing the form
   							

6. Create a Command3 button, and enter the following code in its Click event procedure:

      SET FILTER TO country = "Germany" && sets the filter
      x=FILTER()               && populating the variable with the filter
      thisform.refresh         && refreshing the form
   							

7. Create a Command4 button, and enter the following code in its Click event procedure:

      SET FILTER TO            && clears the filter
      x=FILTER()               && populating the variable with the filter
      thisform.refresh         && refreshing the form
   							

8. Create a text box, and set its ControlSource property to x.
9. Run the form, and click the Command1 button. Notice that the list box doesn't refresh properly. Click the other buttons, and watch the behavior of the list box. Click the list box, and watch the contents change according to which filter is set. Watch the text box to see which filter is set.