Error: Duplicate Deduction/Benefit/Accrual Code - on Enrollment Overrides - how to get rid of error?

Hi,

We got the above error when our user tried to update an Employee's enrollment using the Enrollment Overrides P08330 incorrectly. Bug 17671891 provides an enhancement and instructs that the user needs to end the plan, click OK to save, then go back into P08330 and enter the new plan (works differently than Enroll w/Elig where you can do this all at once)....we understand what should have been done. However, the user entered the enrollment change incorrectly and somehow saved it, and now when we go back into the P08330 for that employee we still get the red error..