Description of problem:
I upgraded from F-15 so this was not installed by default. I installed gnome-documents, but starting the problem shows an empty window. Tracker does not seem to be aware there is a new miner available:

$ LANG=en_US tracker-control -S
Store:
29 Nov 2011, 16:39:10:  ?     Store                 - Idle 

Miners:
29 Nov 2011, 16:39:10:  ?     Flickr                - Idle 
29 Nov 2011, 16:39:10:  ?     File System           - Idle 
29 Nov 2011, 16:39:10:  ?     Emails                - Not running or is a disabled plugin
29 Nov 2011, 16:39:10:  ?     Applications          - Idle

Version-Release number of selected component (if applicable):
tracker-0.12.7-1.fc16.x86_64
gnome-documents-0.2.1-1.fc16.x86_64

How reproducible:
always

Steps to Reproduce:
1. upgrade from Fedora 15
2. yum install gnome-documents
3. gnome documents
  
Actual results:
empty window

Expected results:
window with documents

Additional info:
I cannot start the miner on its own either:

$ /usr/libexec/gd-tracker-gdata-miner
** (process:1506): DEBUG: Connected to the session bus: org.gnome.Documents.GDataMiner
** (process:1506): DEBUG: Object exported on the session bus
** (process:1506): DEBUG: Acquired bus name: org.gnome.Documents.GDataMiner
** (process:1506): DEBUG: Timeout reached, quitting...

(process:1506): GLib-WARNING **: Failed to read from child watch wake up pipe: Interrupted system call