Merge PR #837 into 14.0

Signed-off-by alexis-via

Author: OCA-git-bot

sale_order_ubl/models/report.py

@@ -29,6 +29,8 @@ def _post_pdf(self, save_in_attachment, pdf_content=None, res_ids=None):
     def _render_qweb_pdf(self, res_ids=None, data=None):
         """This is only necessary when tests are enabled.
         It forces the creation of pdf instead of html."""
+        if isinstance(res_ids, int):
+            res_ids = [res_ids]
         if len(res_ids or []) == 1 and not self.env.context.get("no_embedded_ubl_xml"):
             if len(self) == 1 and self.is_ubl_xml_to_embed_in_sale_order():
                 self = self.with_context(force_report_rendering=True)