Steps:
- Go to any event with tickets and using the ticket confirmation
template, sending 'after new confirmation'.
- Confirm a new attendee.
- An email is sent but the chatter only shows the attachment and the
subject, with no body.
Issue:
Chatter should show full content of the email.
Reason:
Above 16.2+ the 'body' is not implicitely set when genrating the
template in ``mail_template.send_mail()``. As discussed with RETH, when
requesting the 'body_html' for a template, setting the 'body' solves the
problem.
opw-3562438
closesodoo/odoo#151930
X-original-commit: 0a3d4b10a7c81d05d9bf6864b0b9a2f48f09b2a0
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>