Before this commit when we update the email_from field on lead with only formatting differing from partner a warning ribbon was displayed. It considered email had changed and had to be propagated. Moreover unnecessary update on partner was done to propagate the new email onto the customer. In this commit we propagate email only if normalized versions are different. It means that if lead email_from is "Hermes Conrad <email@example.com>" and partner email is "Jonathan Conrad <email@example.com"> no update from lead to partner is performed. Indeed normalized versions are the same. Task ID-2461308 PR odoo/odoo#66890 X-Original-Commit odoo/odoo@3dd972c35b closes odoo/odoo#67859 Related: odoo/enterprise#17191 Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>