[IMP] account_invoice_report_grouped_by_picking: Add possibility to s…

…et custom order at lines

account_invoice_report_grouped_by_picking/models/account_move.py

@@ -46,7 +46,7 @@ def _process_section_note_lines_grouped(
         if previous_note and key_note not in lines_dic:
             lines_dic[key_note] = 0.0
 
-    def lines_grouped_by_picking(self):
+    def lines_grouped_by_picking(self, sorted_lines=False):
         """This prepares a data structure for printing the invoice report
         grouped by pickings."""
         self.ensure_one()
@@ -69,9 +69,11 @@ def lines_grouped_by_picking(self):
         so_dict = {x.sale_id: x for x in self.picking_ids if x.sale_id}
         # Now group by picking by direct link or via same SO as picking's one
         previous_section = previous_note = False
-        for line in self.invoice_line_ids.sorted(
-            lambda ln: (-ln.sequence, ln.date, ln.move_name, -ln.id), reverse=True
-        ):
+        if not sorted_lines:
+            sorted_lines = self.invoice_line_ids.sorted(
+                lambda ln: (-ln.sequence, ln.date, ln.move_name, -ln.id), reverse=True
+            )
+        for line in sorted_lines:
             if line.display_type == "line_section":
                 previous_section = line
                 continue