If you build the contraption in the picture the piton pulses and stays extended even tho the redstone is on the "off" state. Also if you remove the redstone it still remains extended.
MC-6063
Redstone block and piston bug
Resolved
Duplicate
0
Georgios Papadopoulous
(Unassigned)
Unconfirmed
Snapshot 13w01a, Snapshot 13w01b
Retrieved
Duplicate of MC-108 , please use the search function to see if your bug has already been submitted. Currently over 40% of tickets are being closed as duplicate.