Dolphin: Video Preview and open the video file

When hoovering above a video file icon, the preview of the vide would start automatically.
Now, when I click on the video file icon to launch a video player (VLC), both the preview video file player and the launched video player are playing at the same vide.
Is there a way to stop the preview video player before the VLC start playing the same video?
Is that a bug or a new feature request?