Nuke index on clone, 'cause the clone's index shouldn't be the same.

Also, change index to "lazy-load" type structure.
Merge remote-tracking branch 'origin/7.x' into 7.x-COH-39
Merge pull request #29 from adam-vessey/7.x-COH-39

Nuke index on clone, 'cause the clone's index shouldn't be the same.