Deleted Old Groups are appearing in Groups List

I was hoping with the new index old deleted groups would be removed from the My Curriki / Groups tab.

1. Go to http://www.gpsnetwork.org/xwiki/bin/view/MyCurriki/Groups?user=XWiki.bfrank

2. Scroll down the list until you see a group without a name or description.
3. Click on that Group

Bug
A deleted group is appearing in the Groups tab.