Torch Block place glitch (Game crash)

When you have a Fence and above air and above the air a wood block
Layers:
Top = Wood
Middle = Air
Bottom = Fence

When you click on the Wood block to place a torch on the fence your launcher will crash.
So if you see picture

And when i right click there with a torch in my hand the launcher will crash. and i have to relog.
BTW = i was playing on a snapshot vanilla server.