Credit Card Provider invoice is validated by default

Oracle 12.0.6 Internet Expenses with "Both Pay" option

Steps:

After expense report has been management and Payables approved...

1. Run Expense Report Export

2.  Invoice is generated for reimbursement to employee

3.  Invoice is generated for reimbursement to credit card provider as xxxxx.1

4.  Query the credit card provider invoice in Invoice Workbench

5.  The credit card provider invoice is already validated by default. 

Is this intended/standard functionality where the credit card provider (AMERICAN EXPRESS.1) is validated by default?

The employee invoice is not validated or accounted.  I would expect the same on the credit card provider invoice, but that's not the case.