In workflows that have approvals, there should be a feature to reset the workflow to a specific stage if the request is modified after a particular stage.

E.G. A change request is approved but then the details of the change are altered slightly (but not enough to warrant rejecting the change outright and having to log a new one which would be cumbersome and add too much overhead).

The updated fields should be easy to identify to the approvers.

This would link in with the similar functionality described in AS-I-301