PRB: CURVAL() Returns Same Value as OLDVAL()

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Steps to Reproduce Behavior

1. Create a new form, and add a table to the data environment.
2. Drag at least one field from the data environment onto the form.
3. Add a command button to the form. Set the caption of the button to Display. In the click event of the button, type the following code, substituting the field name from step 2 for <fieldname>. The field name should be enclosed in quotation marks:

      =MESSAGEBOX("Current value of field:  " + CURVAL(<'fieldname'>) + ;
                 CHR(13) + ;
                 "Old value of field:      " + OLDVAL(<'fieldname'>))

4. Add a second command button to the form. Set the caption of the button to Update. In the click event of the button, type the following code:

      =TABLEUPDATE()

5. In the init event of the form, add the following code:

      =CURSORSETPROP("BUFFERING",5)

6. Save the form as TESTFORM.
7. In the Command window, type DO FORM TESTFORM and press ENTER. Repeat this step.
8. Move the forms so that you can see each form on the screen.
9. Change the data in one copy of the form, and press ENTER. Click the Display button. The current value and old value should be the same. Click the Update button.
10. Click the second copy of the form. Click the Display button. The current and old value should be the same.
11. Close both instances of the form. Change the form.DataSession property to 2, and run both copies of the form again. The curval() and oldval() functions should display the same value on the copy of the form in which you changed the data. After clicking the Update button in this copy of the form, the unmodified copy of the form should display different values for the curval and oldval functions.