Put the summary of the bug you're having here
What I expected to happen was the chest not to open
i think the chest should not open
What actually happened was the chest opend with a glass block and a redstone above it
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Put a chest down
3. ...put a redstone block or glass block above it
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Duplicate of MC-378 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Chests will still open as long as the block directly above them is transparent (yes redstone blocks are considered transparent). That working as intended.
Transparent blocks:
Stairs, slabs, glass (of any color) and redstone blocks. Glow stone use to be but I don't think its considered transparent anymore.