Email translation is not working if there are no content in the Notification Trigger

Email translation is not working if there are no content in the Notification Trigger. The main symptom is that Translated Email Contents" related list is empty.  Additionally, emails will only be properly translated if a Translated Notification (sys_translated_notification) exists.

sys_translated_notification -> OK
sys_translated_email_template -> NOK

1. log in as Admin
2. Go to sysevent_email_action records and open Virtual Agent Message Email Notification
3. Click the Request translations button and verify translation request has been sent to a user group
4. As a user belongs to the user group created above navigate to Notification framework -> My tasks
5. Open a task and click translate
6. Provide translations for the Notification and template
7. Go to Translated Notifications related List in sysevent_email_action and sys_translated_email_template record and verify Translations are listed for Spanish in the related list

Issue: As we are not having any content in Notification Trigger but using an Email template containing Subject and Messages Email notifications are not triggered in Spanish

This problem which is also reported in PRB1652783 is/will be fixed in Vancouver ServiceNow Version

In the meantime, make sure you are at least in Utah version and that you include a notification body translation or  follow all the steps of KB1156957