This isn't a bug but I couldn't find a more suitable place to post this...

We used to have a little notification under items on our wish list if we already had the item on our account. Is that something that will be coming back? It was so handy to prevent duplicate purchases. =)

The normal place to post suggestions is the Suggestions & Ideas Forum.

This has been requested many times and while its a good suggestion, it was removed because it caused too much server load. It will not come back in the form it had. There have been a few alternate suggestions to provide the same functionality, but nothing sufficiently "light" on the servers.