Half-Slabs allow Redstone Connections

Relates to 1.5 "Redstone Update"

http://www.youtube.com/watch?v=nfBVAexor3s (From 0:40 onward. If the video does not work, an attachment has been added to counter such removal.)

The attachment's "Sandstone" slabs are powered from a redstone torch underneath the stone block. Redstone torches cannot power half slabs.

What I expected to happen was...:
Half-slabs not carring signals via upward staggered placement (Shown in picture.)

What actually happened was...:
Instead, the redstone current is sent up the staggered placement of half-slabs.

Steps to Reproduce:
1. Look at attached image or see linked video above starting from 0:40