If fnd_user is end-dated; but respective employee is still active, and he /she is part of the approv

If fnd_user is end-dated; but respective employee is still active, and he /she is part of the approval hierarchy, can he/she act on worklist notifications and approve requisitions ?

I have a scenario where the user end-dated long time back, but was able to approve / reject a requisition via worklist / email after the fnd_user is end-dated.