[16.0][FIX] account_invoice_refund_link: fix erroneous invoice-refund…

… link

The current implementation creates incorrect links between refund lines and their origin invoice lines. This patch fixes it. It's a very small and obvious change so it should be easy to review and merge.

account_invoice_refund_link/models/account_move.py

@@ -23,7 +23,8 @@ def _reverse_moves(self, default_values_list=None, cancel=False):
                     refund_lines = move.line_ids.filtered(
                         lambda x: x.display_type == "product"
                     )
-                    for i, line in enumerate(self.invoice_line_ids):
+                    for i, line in enumerate(self.invoice_line_ids.filtered(
+                            lambda x: x.display_type == "product")):
                         if i < len(refund_lines):
                             refund_lines[i].origin_line_id = line.id
         return reverse_moves