Restarting a completed work item(task)

[lj wf]

A workflow has a task that is completed, however, some
of the updates do not occur because the user that
executed the task does not have authorizations.
 
Is there a way to restart the task so that the
workflow can continue?
 
Programmatically, I believe this should be possible.
I just want to see if anyone has done it before I
invest some time to do it.
 
thanks
 
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