* = account, purchase, sale
Purpose of this commit is to add signature only if really asked. A variable
is available for that purpose (``email_add_signature``, recently renamed from
``add_sign``). We also correctly check signature is not void or pseudo-void
using tool ``is_html_empty``. Indeed editor may generates pseudo-void content
like ``<p><br /></p>``.
As signature is not added when a template is used (see composer code) we ensure
it is defined in mail templates used in "Send by email" flows. Indeed we cannot
know if a template already has a signature or not. To avoid having twice a
signature no signature is added in email notification layout when a template
is involved.
Continuation of odoo/odoo#76418 .
Task-2712450 (Mail/Sale: Improve 'Pay Now' notification template)
Part-of: odoo/odoo#82167
Thibault Delavallée
bf6c805b66