[FIX] mail: fix use of resend wizard when user are in failure

The user right to edit partners was handled in order to set email fields as readonly
If a user is in the failed recipient, we need to check that the urrent user also has
right to write on users

addons/mail/wizard/mail_resend_message.py

@@ -29,7 +29,6 @@ class MailResendMessage(models.TransientModel):
         if message_id:
             mail_message_id = self.env['mail.message'].browse(message_id)
             notification_ids = mail_message_id.notification_ids.filtered(lambda notif: notif.email_status in ('exception', 'bounce'))
-            partner_readonly = not self.env['res.partner'].check_access_rights('write', raise_exception=False)
             partner_ids = [(0, 0,
                 {
                     "partner_id": notif.res_partner_id.id,
@@ -39,6 +38,11 @@ class MailResendMessage(models.TransientModel):
                     "message": notif.format_failure_reason(),
                 }
                 ) for notif in notification_ids]
+            has_user = any([notif.res_partner_id.user_ids for notif in notification_ids])
+            if has_user:
+                partner_readonly = not self.env['res.users'].check_access_rights('write', raise_exception=False)
+            else:
+                partner_readonly = not self.env['res.partner'].check_access_rights('write', raise_exception=False)
             rec['partner_readonly'] = partner_readonly
             rec['notification_ids'] = [(6, 0, notification_ids.ids)]
             rec['mail_message_id'] = mail_message_id.id