Open Atrium integration - bubbletimer arbitrarily moves cases between groups

Installed bubbletimer-6.x-1.x-dev.tar.gz to sites/all/modules on Open Atrium beta5. Enabled Bubbletimer Time Management under admin/build/features.

Bubbletimer somehow moves cases between projects. To recreate:

* enable 'add/remove node' at admin/settings/bubbletimer
* enable 'update node' at admin/settings/bubbletimer

1. Create an arbitrary case 1 in group 1. Click on 'Add this node to my Bubbletimer.'
2. Go to group 2 and create another arbitrary case 2. Click on 'Add this node to my Bubbletimer', and then on 'Bubbletimer >>'.
3. Click 'Save changes'.
4. Go to Case Tracker for group 2, and you will see case 1 has been moved into this group.

To prevent this, do not enable 'Update node when bubbletimer is saved' in admin/settings/bubbletimer