Bots (Intermediate) are buying green wards

Just finished a Co-Op vs AI game, and I noticed that on the results screen after the match, the bots had bought green wards (which have been removed). When I went to go check the match after I had returned to the client, there was an empty spot in their inventory where the wards were.

http://imgur.com/gallery/PXqpAA4/new

While this is not a big deal, it might indicate that the bots are not updated for the current preseason, and that their coding might need a refresher.