If you change the main node of a content object, the results of a search will still display the older main node of that object

Steps to Reproduce

1. Create two folders: FOLDER #001 and FOLDER #002
2. Under FOLDER #001, create the article WhereIsIt #001
3. In the frontend, search for WhereIsIt
4. Confirm the object will be in FOLDER-001/WhereIsIt-001
5. In the backend, add a new location to WhereIsIt #001 under _FOLDER #002
6. Change the location under FOLDER #002 to be the main node.
7. In the frontend, search for WhereIsIt
8. As you will be able to see, the object will still be in # Confirm the object will be in FOLDER-001/WhereIsIt-001

Environment
eZ Publish 4.6
All updates from eZ Publish and eZ Find and the patches from EZP-19673