Embedded content moved to trash still displayed until cache cleared.

Prereq.: Follow the configuration from EZP-28122.

Steps:

1. In the back-office, create new Folder Content Type under "Home" named "Test Folder".
2. In the Media/Files, create new File Content Type named "Test File".
3. Edit the "Test Folder". In the "Description" field, embed the "Test file" using the "Insert/edit object" button from the Rich Text Editor. Publish "Test Folder".
4. In the front-office, navigate to "/Test-Folder". Confirm that the embedded Content Object "Test file" is also displayed.
5. In the backoffice, navigate to "Media/Files/Test file" and remove it by sending it to trash.
6. In the front-office, navigate to "/Test-Folder" again. Notice that the embedded Content Object "Test file" is also displayed, despite being in the trash.
7. Reload server cache
8. In the front-office, navigate to "/Test-Folder" again. Notice that the embedded Content Object "Test file" is not displayed.