[FIX] l10n_be_edi: error at PDF generation

An UBL invoice can contain several `AdditionalDocumentReference`, some
of them without `Attachment`. For example:

```
  <cac:AdditionalDocumentReference>
    <cbc:ID>UBL.BE</cbc:ID>
    <cbc:DocumentDescription>BOB50  6.07.0</cbc:DocumentDescription>
  </cac:AdditionalDocumentReference>
  <cac:AdditionalDocumentReference>
    <cbc:ID>Facture N°19090118 - 30-09-2019.pdf</cbc:ID>
    <cbc:DocumentDescription>CommercialInvoice</cbc:DocumentDescription>
    <cac:Attachment>
      <cbc:EmbeddedDocumentBinaryObject filename="Facture.pdf" mimeCode="application/pdf">JVBERi0xLjMK...
...
```

In this case, a crash occurs since:

```
element.xpath('cac:Attachment//cbc:EmbeddedDocumentBinaryObject', namespaces=namespaces)
```

is an empty list.

To avoid this, we loop on all elements and generate all PDFs.

opw-2128083

closes odoo/odoo#40721

X-original-commit: 2174e4066c5c8f87ed45aa564c184d1ce7063758
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

0 files changed, 0 insertions, 0 deletions