[GNC] Bills with Refund Entries

[Jediator]

I noticed when creating an itemized bill with refund entries (with 
negative item amount), the refund entry shows correctly on the vendor 
report after rendering the refund transaction against the bill.  
However, the refund entry doesn't get included in the running total of 
the bill as shown in the Printable Invoice report.

Could this be a bug? or entering a refund/negative amount in a bill 
isn't a correct practice?  I didn't want to create a separate credit 
note for the refund but want to include the refund entry/entries in a 
single job bill.

I am running GNC version 5.14 on a Mac with Postgresql as the back-end 
database.

Thanks a lot in advance!

-- ND