Issue 1202: Unrevealed works in one collection can be seen by mods in other collections

Resolves issue: http://code.google.com/p/otwarchive/issues/detail?id=1202

If a work is in multiple collections and one of them is Unrevealed, moderators in the other Revealed collections will not be able to see any information about the work.

 If they were to set their collection to Unrevealed then they would be able to see the Work details.