Before this commit, it was not possible to send messages in
full composer containing user mentions. Even whe the mentions were
added in the small composer and then continuing composing the message
in the full composer.
With this commit, we can now make user and channel mentions in the
full composer, by typing `@` and `#` like in the small composer of
Discuss.
When composing a message in small composer and then switching to full
composer, the mentions are preserved.
task-3470060
closesodoo/odoo#132701
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
Zelong Lin
69fe16d42d