field_attach_update() causes OG memberships to be deleted upon user signup

I'm conflicted as to where to post this issue. I've tracked it down to a line of code in filefield_paths, but this may be an OG specific issue.

On a fresh install, I have found that when filefield_paths (7.x-1.x-dev) is enabled that my group audience field does not keep it's value. So, if I set the audience of a post to "Group1" and save it the group audience remains empty.

I've tracked it down to...

filefield_paths.module line 260 

field_attach_update($type, $entity);

If I comment this line out the group data is saved.

I also tested just a simple entity reference field to see if it was an issue with entity_reference and found everything working as intended.