Workflow Synchronization for FND User

Hi All,

There is the new hire that has got the user account of the terminated employee on Active Directory.
As we use the Single Sing On we also need to give this old user account to the new employee on FND_USER table.

With this solution the new employee can see the Workflow notification of the terminated employee on the Worklist although the person ID that we assigned to the user account is for the new employee.

What can we do to remove these old and irrelevant workflow notifications from the worklist of the new user?

We use the 11.5.10.2 application so the Workflow Directory Service Synchronization patch has been applied.