Steps to reproduce

1. Login with the user "superuser" so that you can see the workspace 
2. Delete an object (page, asset, in our case a formular from our own formular-app)
3. Use the JCR-App and navigate in the workspace "magnolia-mgnlVersion" through the tree to the nodes uuid (witch you had deleted before)
4. Mark the node and use the action "export to xml"

Expected results

We will get the xml for the node you had deleted before to restore the content

Actual results

An error from magnolia and an exception in the log (see screenshot an exception in the attachments)