Rekordbox History adding previewed tracks that weren't brought in

So for a while now I've noticed that my History playlist is holding on to tracks that I preview in the headset but don't actually drop in the mix. I normally need to listen carefully to a set that I upload and find the ones that aren't supposed to be on the tracklist,

I moved over from Serato last year and I noticed on it that it would only keep the tracks on history if your fader went over or it was played for 2 minutes or something. Would it be possible to request this as a future feature in the software? Thanks!