Placed Item Frames and Paintings appear as "ghosts" in all world and dimensions

Unable to reproduce in 13w38c.

I noticed the bug disappear when I restarted minecraft after creating several new worlds (to make sure this was an actual bug). Before the restart, floating item frames with workbenches in them would appear at those coords. No mods were in use other than the snapshot.

REPLY Kumasasa: The link you gave me showed how the item frames are duped from another world. I did not have any other worlds in my saves with item frames......

That ghost frames are exisiting only in the ram or even in the graphics card and vanish if Minecraft is restarted (but reappear again)

I saw the paintings i tried to make it disapper i used a piston the ghost paintings disapper.

Can no longer reproduce in 13w39a/b.