Unsubstituted variable when mass mailling

[manu5801]

Bug

The variable __CONTACT_NAME_BILLING__ is not always substituted when used in a mail content. The issue arises only when we send at least 2 mails. The other variables (namely __THIRDPARTY_CODE_CLIENT__ and __THIRDPARTY_NAME__) are correctly substituted, and __CONTACT_NAME_BILLING__ is correctly substituted when we send only one mail.
See a precise bug report attached to this issue (in french).

Dolibarr Version

18.0.5

Environment PHP

php 8.1.27 - apache, mod_php

Environment Database

mariadb 10.11.6

Steps to reproduce the behavior and expected behavior

1. Create an email model including __CONTACT_NAME_BILLING__
2. From the invoice list, select one unpaid invoice, and email the invoice using this email model: __CONTACT_NAME_BILLING__ is correctly substituted in the received email
3. From the invoice list, select two or more unpaid invoices: __NAME_BILLING__ is NOT substituted in the received mails

Expected behavior: __CONTACT_NAME_BILLING__ should be always correctly substituted

Attached files

The attached file is a complete bug report (in french)

20240426_LePic_dolibarr_facturation_bug.pdf