THIS ONLY EFFECTS PISTONS STICKY AND REGULAR
First off, Redstone blocks shouldn't even transfer signal through a solid block, in this update they do, only when the signal is heading downwards. You can remove the block that powers the piston and it will still be powered, you can remove the redstone block and it will still be powered, and you can remove any block that isn't directly touching the piston which gives you Image 3.
What I expected to happen was...:
The Piston should have been unpowered the whole time
What actually happened was...:
The piston was powered and was continued to be powered against all laws of physics.
Steps to Reproduce:
1. Place a redstone block, a solid building block and a piston underneath it. The Piston will power.
2. Remove everything (Even the redstone block and solid block you placed) except the blocks touching the side of the piston.
3. Cry
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Thank you for your report!
We're tracking this issue in MC-108, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
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Duplicate of MC-108.