when placing a sticky piston downwards over a powered rail, then activating it with a button, the rail breaks, and causes a rail on each side to break also.
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Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
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Marking this as a duplicate of MC-26727 because it is more general.
Confirmed in 13w19a. With regular rails, the two on the side just slope upwards.