If a redstone wire is receiving 1 level of power from a block, is pointing at a block, and there is a wire on top of that block, then it will not power that block.
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If a redstone wire is receiving 1 level of power from a block, is pointing at a block, and there is a wire on top of that block, then it will not power that block.
migrated
(Unassigned)
Unconfirmed
Minecraft 1.8.2-pre4
Retrieved