When pushing a shulker using a piston next to the world border, the piston glitches into the shulker.
How to reproduce
Start by summoning a shulker using the following command:
/summon shulker ~ ~ ~ {NoAI:1b}
Place a piston next to the shulker in an attempt to push the shulker outside the world border.
Place a block of redstone to activate the piston and observe.
Observations and Expectations
Observation: Piston seems to glitch inside the shulker when pushed next to the world border.
Expectations: Piston shouldn't glitch inside the shulker even if its forbidden for the block/mob to exit the world border.
Notes: Discovered while testing MC-271320.
Relates to MC-82010.
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We're tracking this issue in MC-82010, so this ticket is being resolved and linked as a duplicate.
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