I'm not sure what version this changed, but in the past, when I added songs to a playlist I did not need to worry about whether or not I had already added it because it would not be duplicated in the list if it was already there.
This feature was awesome. It saved me so much time since I didn't have to double check every time I was adding to my favorite playlists.
In more recent versions, it does not have this feature. If I accidentally add a song for a second (or third or fourth) time to a playlist, it simply adds it. What a pain. Now I have to scour through my lists looking for duplicates. I can understand that some people might want to have the exact same song twice in a playlist (though I'm not sure why). But it seems like a much more useful feature to avoid duplicates.
Can this feature be enabled in some manner through option settings? If not, can you add back this capability?
Thanks.
Kent