[FIX] l10n_latam_invoice_document: header/footer in mutli-print

When l10n_latam_invoice_document is installed and the current company
does not have a custom header (in stable, only Chile and Argentina with
their localization installed use custom header), printing multiple
invoice at once, one out of two had no header or footer.

This is because `<div class="header"/>` and `<div class="footer"/>`
should be unique per record being printed, and when a custom header was
not used they were duplicated with the duplicate empty.

As an example, if we had 3 documents:

- record 1 : good header
- record 1 : empty header
- record 1 : body
- record 1 : good footer
- record 1 : empty footer

- record 2 : good header
- record 2 : empty header
- record 2 : body
- record 2 : good footer
- record 2 : empty footer

- record 3 : good header
- record 3 : empty header
- record 3 : body
- record 3 : good footer
- record 3 : empty footer

When we give them to wkhtmltopdf, it would be mismatched:

- headers:
  - record 1 : good header
  - record 1 : empty header
  - record 2 : good header

- bodies:
  - record 1 : body
  - record 2 : body
  - record 3 : body

- footers:
  - record 1 : good footer
  - record 1 : empty footer
  - record 2 : good footer

so record 2 will have empty header/footer, and record 3 will get those
of record 2.

opw-2507137

closes odoo/odoo#69703

X-original-commit: 90bdb5c7b7aa6a9b98e9acb1774d449ae65a3918
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

0 files changed, 0 insertions, 0 deletions