Put the summary of the bug you're having here

What I expected to happen was...:
The redstone should appear powered 

What actually happened was....
The redstone wasnt powered

Steps to Reproduce:
1. One tick a sticky piston and put a redstone block on its face.
2. Wire redstone from next to where the redstone block will be after its pushed and to another piston that will push the block back.
3.You should see that the redstone will work but it will not seem powered