fix: do not render email if we arent sending email with notification

rhodecode/model/notification.py

@@ -117,6 +117,8 b' class NotificationModel(BaseModel):'
         # add mentioned users into recipients
         final_recipients = set(recipients_objs).union(mention_recipients)
 
+        # No need to render email if we are sending just notification
+        if with_email:
         (subject, email_body, email_body_plaintext) = \
             EmailNotificationModel().render_email(notification_type, **email_kwargs)