Fix display of documents imported with CSV importer

Steps to reproduce:

• Log in as an Administrator.
• Navigate to a folder and click on the Add Content button.
• Click on the CSV tab and upload the attached csv file (attached).
• Activate import mode (click on the toggle that says Apply Date, Author and Dublin Core properties)
• Click on the Create button.
  => Import is shown as successful.
  => Folder does not display imported documents.
• Empty cache and hard reload.
  => Folder does not display imported documents.
• Navigate to the same folder in JSF
  => Folder displays imported documents.

No errors in console or server.log