I place a piston facing any cardinal direction (N,W,S,E), then a redstone block on top of the piston. I place another redstone block adjacent to the first redstone block. If the first redstone block is broken then the second redstone block, the piston stays powered.
Also this can be repeated using a piston facing upwards. Place a piston facing upwards with a redstone block on top of the piston’s head. Then power the piston with a second redstone block adjacent to the bottom of the piston. Break the second redstone block, and the piston will remain powered.
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.
If you would like to learn more about this particular feature, see this article on the Minecraft Wiki.
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