Solution : https://service.sap.com/sap/support/notes/371675 (SAP Service marketplace login required)
Key words : 
additional key words vf05, data  trg  funct   8   py, transaction 'list billing documents', pro-forma incoices distort, pro-forma invoices, list function 'totaling', affected documents carry, point 'lists' extend, attached modification proposal, 'actual' invoices
Related Notes : 
       
| 313838 | Liste Fakturen: Selektion für Fakturatyp ignoriert | 
| 170183 | |
| 128947 | Correction of SD document indexes with RVV05IVB | 
| 69543 | VF05: Displaying proforma invoices |