The Reanimater's Cloak dropped for me the other day and I moused over it and Tekkompare popped up the comparison frame so I could see how it compared to my currently equipped back.  AI tooltip info in the Cloak frame correctly said that one of my toons had the Reanimater's Cloak in their bank but in the comparison frame (which had the currently equipped back of the toon I was playing) it listed the toon that had the Reanimater's Cloak in their bank as also having the compared item bank instead of the currently played toon wearing it.

Screen shot, left hand frame is the item frame and the right hand frame is the current toon's equipped item.  The left hand frame is correct and the right hand is incorrect.

http://i121.photobucket.com/albums/o212/BWMerlin/AItooltipconfusion.jpg