* mail.blacklist.mixin now clearly make inheritance on mail.thread. Indeed
we consider models using the blacklist mechanism as being used in mailing
features, meaning they will anyway inherit form mail.thread. In standard
Odoo it is the case for the 3 models using it (Lead/Opportunity, Contact
and Mailing Contact);
* define message_bounce directly in mail.blacklist.mixin. Bounce counter
is indeed linked to the blacklist and mailing mechanism;
* rename mail.blacklist.mixin to mail.thread.blacklist to ensure coherency
with mail.thread and mail.thread.cc (another mixin build on mailL.thread);
Inherit declarations in various addons are updated accordingly.
Related to task ID 1911679
Linked to PR #29483
Thibault Delavallée
dbd4aab6c3