[FIX] sale: Sale order note line is not present in generated invoice

Steps to reproduce the bug:
- Create a sale order with a product and a note line
- Confirm it
- Add the delivered quantity
- Click "Create invoice"

Bug:
The note line is not present in the generated invoice.

Inspired by: https://github.com/odoo/odoo/blob/bc8856baaa97ac386ce6115919c49d28fd2aab73/addons/sale/models/sale.py#L657-L659

opw:2362321

closes odoo#61225

X-original-commit: ff4f1ea
Signed-off-by: backspac <backspac@users.noreply.github.com>

addons/sale/models/sale.py

@@ -622,9 +622,9 @@ def _create_invoices(self, grouped=False, final=False):
                 if line.display_type == 'line_section':
                     pending_section = line
                     continue
-                if float_is_zero(line.qty_to_invoice, precision_digits=precision):
+                if line.display_type != 'line_note' and float_is_zero(line.qty_to_invoice, precision_digits=precision):
                     continue
-                if line.qty_to_invoice > 0 or (line.qty_to_invoice < 0 and final):
+                if line.qty_to_invoice > 0 or (line.qty_to_invoice < 0 and final) or line.display_type == 'line_note':
                     if pending_section:
                         invoice_vals['invoice_line_ids'].append((0, 0, pending_section._prepare_invoice_line()))
                         pending_section = None