when a detector rail is placed next a slanted (downward) powered rail, it will power it with nothing on the detector rail, the same happens if you place redstone or a redstone powered device under the block with the detector rail on it
also mono stable circuits don't cause sticky pistons to drop there block anymore causing T flip flops to break
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duplicates
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migrated
Duplicate of MC-5788 and MC-6099, please use the search function to see if your bug has already been submitted. Currently over 40% of tickets are being closed as duplicate.