By this commit, If a user edits the message body or changes
the message attachments, the edited label in the blob,
shows the last edit Info.
Task-2664848
closesodoo/odoo#117896
Related: odoo/enterprise#40208
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
This commit focuses on removing all references to discuss.channel from
controllers of mail module.
In preparation of splitting discuss and mail modules.
Part of task-3265211
closesodoo/odoo#119523
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>