[FIX] portal: manually subscribe when inviting

We should avoid autofollow as all recipeints are added as follower. When using
templates this could lead to a lot of unwanted subscription especially in batch
operation like share wizard.

Better subscribe those new people manually.

Task-2612911
PR odoo/odoo#60792

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/portal/wizard/portal_share.py

@@ -59,7 +59,7 @@ class PortalShare(models.TransientModel):
             saved_lang = self.env.lang
             self = self.with_context(lang=partner.lang)
             template = self.env.ref('portal.portal_share_template', False)
-            active_record.with_context(mail_post_autofollow=self.env.context.get('mail_post_autofollow', True)).message_post_with_view(template,
+            active_record.message_post_with_view(template,
                 values={'partner': partner, 'note': self.note, 'record': active_record,
                         'share_link': share_link},
                 subject=_("You are invited to access %s", active_record.display_name),
@@ -75,7 +75,7 @@ class PortalShare(models.TransientModel):
             saved_lang = self.env.lang
             self = self.with_context(lang=partner.lang)
             template = self.env.ref('portal.portal_share_template', False)
-            active_record.with_context(mail_post_autofollow=self.env.context.get('mail_post_autofollow', True)).message_post_with_view(template,
+            active_record.message_post_with_view(template,
                 values={'partner': partner, 'note': self.note, 'record': active_record,
                         'share_link': share_link},
                 subject=_("You are invited to access %s", active_record.display_name),
@@ -83,4 +83,9 @@ class PortalShare(models.TransientModel):
                 email_layout_xmlid='mail.mail_notification_light',
                 partner_ids=[(6, 0, partner.ids)])
             self = self.with_context(lang=saved_lang)
+
+        # subscribe all recipients so that they receive future communication (better than
+        # using autofollow as more precise)
+        active_record.message_subscribe(partner_ids=self.partner_ids.ids)
+
         return {'type': 'ir.actions.act_window_close'}