[FIX] mail_show_follower: Use company from the document to render mes…

…sages correctly + proper lang handle

In a multi-company environment, if one company uses the
show_followers_partner_format by partner_name and another company
uses partner_email, a user with permissions in both companies may
experience issues. If a document belongs to Company A, but the current
company is set to Company B, the message format is taken from the
current company (Company B) instead of the document’s company
(Company A). This fix ensures that the message format is rendered based
on the document's company.

It also fixes the lang handling for cases with False values.

mail_show_follower/models/mail_mail.py

@@ -72,14 +72,16 @@ def _send(self, auto_commit=False, raise_exception=False, smtp_session=None):
             show_in_cc_recipients = recipients._filter_shown_in_cc(show_internal_users)
             if len(show_in_cc_recipients) <= 1:
                 continue
-
-            langs = (
-                mail.notification_ids.res_partner_id.mapped("lang")
+            lang = (
+                mail.notification_ids.res_partner_id[:1].lang
                 or mail.author_id.lang
                 or company.partner_id.lang
+                or "en_US"
             )
-            final_cc = mail.with_context(lang=langs[0])._build_cc_text(
-                show_in_cc_recipients
+            final_cc = (
+                mail.with_context(lang=lang)
+                .with_company(company)
+                ._build_cc_text(show_in_cc_recipients)
             )
             mail.body_html = final_cc + mail.body_html
         return super()._send(

mail_show_follower/static/description/index.html

@@ -8,11 +8,10 @@
 
 /*
 :Author: David Goodger (goodger@python.org)
-:Id: $Id: html4css1.css 9511 2024-01-13 09:50:07Z milde $
+:Id: $Id: html4css1.css 8954 2022-01-20 10:10:25Z milde $
 :Copyright: This stylesheet has been placed in the public domain.
 
 Default cascading style sheet for the HTML output of Docutils.
-Despite the name, some widely supported CSS2 features are used.
 
 See https://docutils.sourceforge.io/docs/howto/html-stylesheets.html for how to
 customize this style sheet.
@@ -275,7 +274,7 @@
   margin-left: 2em ;
   margin-right: 2em }
 
-pre.code .ln { color: gray; } /* line numbers */
+pre.code .ln { color: grey; } /* line numbers */
 pre.code, code { background-color: #eeeeee }
 pre.code .comment, code .comment { color: #5C6576 }
 pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
@@ -301,7 +300,7 @@
 span.pre {
   white-space: pre }
 
-span.problematic, pre.problematic {
+span.problematic {
   color: red }
 
 span.section-subtitle {
@@ -437,9 +436,7 @@ <h2><a class="toc-backref" href="#toc-entry-6">Contributors</a></h2>
 <div class="section" id="maintainers">
 <h2><a class="toc-backref" href="#toc-entry-7">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
-<a class="reference external image-reference" href="https://odoo-community.org">
-<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
-</a>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>