Worklist recycle vouchers causing bypass of workflow

I am new to the Oracle Community, please be kind.  We allow workflow approvers to make changes to the coding of a voucher within their worklist.  If a user enters coding which includes a combo error, they get typical warning windows alerting them the voucher can be saved but further processing cannot occur until the error is resolved.  Then they get another window asking whether they want to resubmit the voucher for approval.  If they click 'Yes' then the recycle voucher is flushed from their worklist and the approval status is changed from 'Pending' to 'Approved' and the approval history