b4f569c4_ips__Converting_to_Access_2007__Bug
[Comments] While a form is being edited, a control's OldValue should indicate the value that will be restored if you undo the edit. The OldValue of a combo bound to a multi-valued field yields the current value, not the old value. [Fixed?] No [Bug] 
OldValue incorrect in multi-valued fields
Microsoft Access tips: Converting to Access 2007
Bug