Reconsider application (reverse termination) errors mentioning future person type exists:

If an applicant has future person type changes, then reconsidering (reverse termination) of earlier applications do not work.
Case 1:
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Application   Start_Date    End_Date
-----------   -----------   -----------
A1            01-JAN-2011   15-JAN-2011
A2            01-FEB-2011   10-FEB-2011
A3            01-MAR-2011   22-MAR-2011

Assume Sysdate is 01-APR-2011. Then you cannot reconsider A2 or A1. This is because due to A3 getting terminated it moves the person type from applicant to ex-applicant.  It creates future person type of ex-applicant as of A2's termination date.

Case 2:
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1. Query for an employee and terminate on a future date (for example terminate 1 year after the system date).
2. In sysdate apply for a vacancy for this person.