1. Login to http://adfdev.lab.alfresco.me/ as firstname.lastname@example.org/admin.
2. Select 'PEOPLE_APP' and start a process.
3. Select 'Administrator' from people widget and then clear the option and leave people widget blank (or type a random word).
4. Complete the start event and click to view it.
People widget should display (empty).
People widget displays the last choice selected from the user (in this case, Administrator).