Fixing Filenames on BillDocumentViewList

prs.desktop/Panels/Suppliers/Bills/SupplierBillPanel.xaml.cs

@@ -544,6 +544,11 @@ public class BillDocumentViewList : DocumentViewList<BillDocument>
     {
         return document.DocumentLink.ID;
     }
+
+    protected override string GetDocumentFileName(IEnumerable<BillDocument> documents, Document document)
+    {
+        return Documents.FirstOrDefault(x => x.DocumentLink.ID == document.ID)?.DocumentLink.FileName ?? "";
+    }
 }
 
 public class BillPanelDocumentCache : DocumentCache