Customer Refund Appears in the List of Invoices when Accepting Customer Payment

Generally, when accepting customer payment, the users see a list of invoices to which the payment should be applied. It is not common to see Customer Refund in the list.  

 

In this instance, the customer refund is included among the list of invoices. This happens when user accepts customer payment without applying it to any invoice. Then the user refunded the payment an subsequently edits the payment transaction and apply it to open invoices. This leaves the customer refund open and will now appear together with the list of open invoices.