When trying to preview a content in pending/draft status, it raise an error saying that :

<code>An exception has been thrown during the rendering of a template ("When generating an UrlAlias route, either 'location' or 'locationId must be provided.") in eZDemoBundle::page_head.html.twig at line 21.
</code>

steps to reproduce:

• activate workflow Wait until date
• publish a content with a publish_date in the futur
• try to reach /content/versionview/#locID/1

Introduced in EZP-22610