Breaking: #77934 - Remove field select_key from content element preview
See forge#77934
Description
The value of the field select_ has been shown in the preview of a content element in the page module.
This field has been removed and therefore also the preview has been removed.
Impact
The preview of this field is not available anymore.
Affected Installations
Every installation or third party extension which uses the field.
Migration
No migration available.